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All questions of Conservation of Plants and Animals for Primary 6 Exam
Soil erosion may lead to :- a)water logging
- b)water scarcity
- c)air pollution
- d)floods
Correct answer is option 'D'. Can you explain this answer?
Soil erosion may lead to :
a)
water logging
b)
water scarcity
c)
air pollution
d)
floods
|
Dipika Mukherjee answered |
The removal of top fertile layer of soil is called soil erosion. Soil erosion may leads to floods.
Biotic components of an ecosystem does not include :- a)minerals
- b)mammals
- c)mosses
- d)microbes
Correct answer is option 'A'. Can you explain this answer?
Biotic components of an ecosystem does not include :
a)
minerals
b)
mammals
c)
mosses
d)
microbes
|
Gauri Nambiar answered |
The living components of an ecosystem are called biotic components of ecosystem. Ecosystem includes microbes, plant and animals but it does not include minerals.
The largest among various protected areas is a :-- a)biosphere reserve
- b)wildlife sanctuary
- c)botanical garden
- d)national park
Correct answer is option 'A'. Can you explain this answer?
The largest among various protected areas is a :-
a)
biosphere reserve
b)
wildlife sanctuary
c)
botanical garden
d)
national park
|
Ananya Das answered |
Biosphere reserve is the largest among various protected areas for plants and animals. Biosphere reserves covers large area and different zone. Wildlife sanctuary and national park are small areas.
That part of earth in which living organisms exist is called:- a)biosphere
- b)xerosphere
- c)lithosphere
- d)microsphere
Correct answer is option 'A'. Can you explain this answer?
That part of earth in which living organisms exist is called:
a)
biosphere
b)
xerosphere
c)
lithosphere
d)
microsphere
|
Geetika Shah answered |
The part of earth in which living organisms are found is called biosphere. Biosphere includes lithosphere, hydrosphere and atmosphere.
Deforestation means clearing of forests and using that land for other purposes. Trees in the forest are cut for various purposes such as procuring land for cultivation, building houses and factories, making furniture, or using wood as fuel. Some natural causes of deforestation are ______ and severe droughts.- a)blizzards
- b)earthquakes
- c)forest fires
- d)none of these
Correct answer is option 'C'. Can you explain this answer?
Deforestation means clearing of forests and using that land for other purposes. Trees in the forest are cut for various purposes such as procuring land for cultivation, building houses and factories, making furniture, or using wood as fuel. Some natural causes of deforestation are ______ and severe droughts.
a)
blizzards
b)
earthquakes
c)
forest fires
d)
none of these
|
Nclex Coaching Centre answered |
Forest fires are one of the natural causes of deforestation. When fires occur in forests, they can destroy trees and vegetation, leading to deforestation.
Which of the following shows a modern technology measure that helps preserve and conserve the environment?- a)The practising crop rotation
- b)The recycling of paper, plastics and metal cans
- c)Using machines in agricultural industry
- d)Converting industrial wastes into biogas
Correct answer is option 'B'. Can you explain this answer?
Which of the following shows a modern technology measure that helps preserve and conserve the environment?
a)
The practising crop rotation
b)
The recycling of paper, plastics and metal cans
c)
Using machines in agricultural industry
d)
Converting industrial wastes into biogas
|
Kavya Chopra answered |
By recycling resources, we can prevent overexploitation of resources and conserve the resources and in turn conserve the environmen
Which of the following is/are factors that pose a great threat to biodiversity?- a)Habitat destruction
- b)Disturbance and introduction of alien species
- c)Man's interference with nature
- d)All of these
Correct answer is option 'D'. Can you explain this answer?
Which of the following is/are factors that pose a great threat to biodiversity?
a)
Habitat destruction
b)
Disturbance and introduction of alien species
c)
Man's interference with nature
d)
All of these
|
Pranab Chawla answered |
Habitat destruction, over use of natural resources and manss interference with nature pose a threat to biodiversity.
Which of the following is/are caused due to uncontrolled deforestation?- a)The destruction of habitats
- b)Landslides
- c)Floods
- d)All of these
Correct answer is option 'D'. Can you explain this answer?
Which of the following is/are caused due to uncontrolled deforestation?
a)
The destruction of habitats
b)
Landslides
c)
Floods
d)
All of these
|
Sankar Bajaj answered |
Uncontrolled deforestation leads to destruction of habitats, soil erosion, flash floods, increase of carbon dioxide in the air and global warming.
Which of the following is the consequence of man's interference with nature?- a)Increase in natural resources
- b)Biological imbalance
- c)Increase in the ozone layer
- d)Reappearance of extinct species
Correct answer is option 'B'. Can you explain this answer?
Which of the following is the consequence of man's interference with nature?
a)
Increase in natural resources
b)
Biological imbalance
c)
Increase in the ozone layer
d)
Reappearance of extinct species
|
Saranya Bose answered |
Biological imbalance is a consequence of man's interference with nature.
What is a major threat to the survival of a variety of plants and animals on Earth?- a)Urbanization
- b)Deforestation
- c)Industrialization
- d)Pollution
Correct answer is option 'B'. Can you explain this answer?
a)
Urbanization
b)
Deforestation
c)
Industrialization
d)
Pollution
|
Saikat Malik answered |
Understanding Deforestation as a Threat
Deforestation is a significant threat to the survival of various plant and animal species on Earth. It refers to the large-scale removal of trees from forests, often for agriculture, urban development, or logging. Here’s how deforestation impacts biodiversity:
Loss of Habitat
- Deforestation destroys the natural habitats of countless species.
- Many animals depend on forests for food, shelter, and breeding grounds.
- When trees are cut down, these species are forced to relocate or face extinction.
Decreased Biodiversity
- Forests are home to over half of the world's plant and animal species.
- The loss of these ecosystems leads to reduced genetic diversity.
- A decrease in biodiversity makes ecosystems more vulnerable to diseases and climate change.
Disruption of Food Chains
- Deforestation can upset the balance of food chains.
- When one species disappears due to habitat loss, it affects other species that rely on it for food.
- This can lead to a cascading effect, causing more species to decline or vanish.
Climate Change Effects
- Trees play a crucial role in absorbing carbon dioxide.
- Their removal contributes to increased greenhouse gas emissions.
- This worsens climate change, which further threatens species already struggling to survive.
Conclusion
Deforestation is a pressing environmental issue that directly threatens the survival of many plants and animals. Protecting forests is essential for maintaining biodiversity and ensuring a healthy planet for future generations. By understanding the effects of deforestation, we can take steps to preserve our natural world.
Deforestation is a significant threat to the survival of various plant and animal species on Earth. It refers to the large-scale removal of trees from forests, often for agriculture, urban development, or logging. Here’s how deforestation impacts biodiversity:
Loss of Habitat
- Deforestation destroys the natural habitats of countless species.
- Many animals depend on forests for food, shelter, and breeding grounds.
- When trees are cut down, these species are forced to relocate or face extinction.
Decreased Biodiversity
- Forests are home to over half of the world's plant and animal species.
- The loss of these ecosystems leads to reduced genetic diversity.
- A decrease in biodiversity makes ecosystems more vulnerable to diseases and climate change.
Disruption of Food Chains
- Deforestation can upset the balance of food chains.
- When one species disappears due to habitat loss, it affects other species that rely on it for food.
- This can lead to a cascading effect, causing more species to decline or vanish.
Climate Change Effects
- Trees play a crucial role in absorbing carbon dioxide.
- Their removal contributes to increased greenhouse gas emissions.
- This worsens climate change, which further threatens species already struggling to survive.
Conclusion
Deforestation is a pressing environmental issue that directly threatens the survival of many plants and animals. Protecting forests is essential for maintaining biodiversity and ensuring a healthy planet for future generations. By understanding the effects of deforestation, we can take steps to preserve our natural world.
Which of the following is an abiotic component?- a)Cow
- b)Grass
- c)Temperature
- d)Bacteria
Correct answer is option 'C'. Can you explain this answer?
Which of the following is an abiotic component?
a)
Cow
b)
Grass
c)
Temperature
d)
Bacteria
|
Ritika Basak answered |
The non-living or abiotic components of an ecosystem are air, water, temperature, soil etc.
What prevents soil erosion?- a)Allowing herbivorous animals to graze excessively
- b)Growing plants to form the soil cover
- c)Increasing fertility
- d)Making the land sloppy
Correct answer is option 'B'. Can you explain this answer?
What prevents soil erosion?
a)
Allowing herbivorous animals to graze excessively
b)
Growing plants to form the soil cover
c)
Increasing fertility
d)
Making the land sloppy
|
|
Ritika Basak answered |
The root system of many plants especially grasses, have high soil binding capacity and thus help in the prevention of soil erosion.
Which of the following are the uses of IUCN Red List?- a)Developing awareness about the importance of threatened biodiversity
- b)Identification and documentation of endangered species
- c)Providing a global index of the decline of biodiversity
- d)All of these
Correct answer is option 'D'. Can you explain this answer?
Which of the following are the uses of IUCN Red List?
a)
Developing awareness about the importance of threatened biodiversity
b)
Identification and documentation of endangered species
c)
Providing a global index of the decline of biodiversity
d)
All of these
|
|
Pranab Chawla answered |
IUCN red list is a book which keeps the record of all the endangered plants and animals.
What is one effect of global warming caused by increased carbon dioxide levels?- a)Increased rainfall
- b)Decreased temperature
- c)Reduced ice melting
- d)Disturbance of the water cycle
Correct answer is option 'D'. Can you explain this answer?
a)
Increased rainfall
b)
Decreased temperature
c)
Reduced ice melting
d)
Disturbance of the water cycle
|
Raksha Das answered |
Disturbance of the water cycle
Increased carbon dioxide levels due to global warming have a significant impact on the water cycle, leading to its disturbance. Here's how it happens:
1. Increased evaporation:
- Higher temperatures caused by global warming lead to increased evaporation of water from oceans, lakes, and rivers.
- This excess evaporation can result in more water vapor in the atmosphere.
2. Intensified precipitation:
- With more water vapor in the atmosphere, there is a greater potential for intense rainfall and storms.
- This can lead to increased flooding in some areas and droughts in others.
3. Changes in weather patterns:
- Global warming can alter weather patterns, leading to unpredictable and extreme weather events.
- This can disrupt the natural flow of the water cycle, impacting ecosystems, agriculture, and human settlements.
4. Melting glaciers and ice caps:
- Rising temperatures cause glaciers and ice caps to melt at accelerated rates.
- This melting ice contributes to rising sea levels, further disrupting the water cycle and affecting coastal communities.
In conclusion, the disturbance of the water cycle due to global warming caused by increased carbon dioxide levels has far-reaching consequences on the environment and human societies. It is crucial to take action to mitigate these effects and protect our planet for future generations.
Increased carbon dioxide levels due to global warming have a significant impact on the water cycle, leading to its disturbance. Here's how it happens:
1. Increased evaporation:
- Higher temperatures caused by global warming lead to increased evaporation of water from oceans, lakes, and rivers.
- This excess evaporation can result in more water vapor in the atmosphere.
2. Intensified precipitation:
- With more water vapor in the atmosphere, there is a greater potential for intense rainfall and storms.
- This can lead to increased flooding in some areas and droughts in others.
3. Changes in weather patterns:
- Global warming can alter weather patterns, leading to unpredictable and extreme weather events.
- This can disrupt the natural flow of the water cycle, impacting ecosystems, agriculture, and human settlements.
4. Melting glaciers and ice caps:
- Rising temperatures cause glaciers and ice caps to melt at accelerated rates.
- This melting ice contributes to rising sea levels, further disrupting the water cycle and affecting coastal communities.
In conclusion, the disturbance of the water cycle due to global warming caused by increased carbon dioxide levels has far-reaching consequences on the environment and human societies. It is crucial to take action to mitigate these effects and protect our planet for future generations.
What is one consequence of deforestation on soil properties?- a)Improved fertility
- b)Increased water holding capacity
- c)More soil erosion
- d)Better texture
Correct answer is option 'C'. Can you explain this answer?
a)
Improved fertility
b)
Increased water holding capacity
c)
More soil erosion
d)
Better texture
|
Geetika Dasgupta answered |
Consequences of Deforestation on Soil Properties
Deforestation has significant impacts on soil properties, one of the most critical being increased soil erosion.
Understanding Soil Erosion
- Soil erosion refers to the process where the top layer of soil is removed, often due to water, wind, or human activity.
- Trees and plants play a vital role in stabilizing the soil with their roots, preventing erosion.
Impact of Deforestation
- When trees are cut down, the protective cover they provide is lost.
- Without this cover, soil becomes more vulnerable to erosion from rainfall and wind.
Consequences of Increased Erosion
- Loss of Nutrients: Erosion removes the nutrient-rich topsoil, making it difficult for plants to grow.
- Reduced Soil Quality: The soil may lose its structure and become less fertile, affecting agriculture and natural vegetation.
- Sedimentation: Eroded soil can wash into rivers and lakes, leading to sedimentation that harms aquatic life.
Long-term Effects
- Continuous erosion can lead to desertification, making areas uninhabitable for plants and animals.
- It can also disrupt local ecosystems and contribute to climate change by releasing carbon stored in trees and soil.
In summary, deforestation significantly contributes to increased soil erosion, which has detrimental effects on soil quality and the environment. This is why it is crucial to practice sustainable land management and reforestation efforts to protect our soil and ecosystems.
Deforestation has significant impacts on soil properties, one of the most critical being increased soil erosion.
Understanding Soil Erosion
- Soil erosion refers to the process where the top layer of soil is removed, often due to water, wind, or human activity.
- Trees and plants play a vital role in stabilizing the soil with their roots, preventing erosion.
Impact of Deforestation
- When trees are cut down, the protective cover they provide is lost.
- Without this cover, soil becomes more vulnerable to erosion from rainfall and wind.
Consequences of Increased Erosion
- Loss of Nutrients: Erosion removes the nutrient-rich topsoil, making it difficult for plants to grow.
- Reduced Soil Quality: The soil may lose its structure and become less fertile, affecting agriculture and natural vegetation.
- Sedimentation: Eroded soil can wash into rivers and lakes, leading to sedimentation that harms aquatic life.
Long-term Effects
- Continuous erosion can lead to desertification, making areas uninhabitable for plants and animals.
- It can also disrupt local ecosystems and contribute to climate change by releasing carbon stored in trees and soil.
In summary, deforestation significantly contributes to increased soil erosion, which has detrimental effects on soil quality and the environment. This is why it is crucial to practice sustainable land management and reforestation efforts to protect our soil and ecosystems.
Which of the following are living resources in nature?- a)Flora
- b)Fauna
- c)Soil
- d)Both (A) and (B)
Correct answer is option 'D'. Can you explain this answer?
Which of the following are living resources in nature?
a)
Flora
b)
Fauna
c)
Soil
d)
Both (A) and (B)
|
Madhurima Nair answered |
Plants known as flora and animals, Fauna are living resources in nature.
A place in environment where an organism lives is ________- a)Home
- b)Resort
- c)Habitat
- d)Reservoir
Correct answer is option 'C'. Can you explain this answer?
A place in environment where an organism lives is ________
a)
Home
b)
Resort
c)
Habitat
d)
Reservoir
|
|
Aruna Singh answered |
A place in the environment where an organism lives is called a habitat. A habitat is the natural environment in which an organism lives, grows, and interacts with other organisms and its surroundings. It is the place where an organism finds the necessary resources, such as food, shelter, and space, to survive and reproduce. The habitat provides the conditions that an organism needs to thrive and meet its basic needs. The other options you provided, "home," "resort," and "reservoir," are not related to the natural environment in which an organism lives.
What is a consequence of desertification?- a)Creation of new forests
- b)Loss of soil fertility
- c)Increase in water bodies
- d)Improved agricultural yield
Correct answer is option 'B'. Can you explain this answer?
a)
Creation of new forests
b)
Loss of soil fertility
c)
Increase in water bodies
d)
Improved agricultural yield
|
Amrita Mukherjee answered |
Understanding Desertification
Desertification refers to the process where fertile land becomes increasingly arid and desert-like, often due to factors like climate change, deforestation, and poor land management. One of the main consequences of this phenomenon is the loss of soil fertility.
Consequences of Desertification:
- Loss of Soil Fertility:
- As desertification progresses, the nutrient-rich topsoil is eroded or depleted. This leads to a decline in soil quality, making it difficult for plants to grow.
- Nutrients such as nitrogen, phosphorus, and potassium, which are essential for plant growth, are washed away or consumed by excessive farming practices.
- Impact on Agriculture:
- Farmers face challenges in producing crops because of the reduced soil fertility. This can lead to lower agricultural yields, resulting in food shortages and economic difficulties for communities reliant on farming.
- Increased Soil Erosion:
- Loss of vegetation cover, which protects the soil, leads to increased erosion by wind and water. This further diminishes the soil's ability to support plant life.
Why Other Options Are Incorrect:
- Creation of New Forests:
- Desertification typically destroys existing vegetation rather than creating new forests.
- Increase in Water Bodies:
- Desertification usually leads to a decrease in water availability, not an increase in water bodies.
- Improved Agricultural Yield:
- The opposite occurs; agricultural yield declines due to the loss of soil fertility.
In conclusion, desertification has severe impacts on the environment, primarily leading to the loss of soil fertility, which poses significant challenges for food production and sustainability.
Desertification refers to the process where fertile land becomes increasingly arid and desert-like, often due to factors like climate change, deforestation, and poor land management. One of the main consequences of this phenomenon is the loss of soil fertility.
Consequences of Desertification:
- Loss of Soil Fertility:
- As desertification progresses, the nutrient-rich topsoil is eroded or depleted. This leads to a decline in soil quality, making it difficult for plants to grow.
- Nutrients such as nitrogen, phosphorus, and potassium, which are essential for plant growth, are washed away or consumed by excessive farming practices.
- Impact on Agriculture:
- Farmers face challenges in producing crops because of the reduced soil fertility. This can lead to lower agricultural yields, resulting in food shortages and economic difficulties for communities reliant on farming.
- Increased Soil Erosion:
- Loss of vegetation cover, which protects the soil, leads to increased erosion by wind and water. This further diminishes the soil's ability to support plant life.
Why Other Options Are Incorrect:
- Creation of New Forests:
- Desertification typically destroys existing vegetation rather than creating new forests.
- Increase in Water Bodies:
- Desertification usually leads to a decrease in water availability, not an increase in water bodies.
- Improved Agricultural Yield:
- The opposite occurs; agricultural yield declines due to the loss of soil fertility.
In conclusion, desertification has severe impacts on the environment, primarily leading to the loss of soil fertility, which poses significant challenges for food production and sustainability.
What are the purposes for which trees in the forest are cut?- a)Procuring land for cultivation, building houses and factories, making furniture
- b)Scientific research, establishing zoos, and creating wildlife documentaries
- c)Expanding urban areas, increasing tourism, and recreational purposes
- d)Manufacturing medicines, cosmetics, and household items
Correct answer is option 'A'. Can you explain this answer?
a)
Procuring land for cultivation, building houses and factories, making furniture
b)
Scientific research, establishing zoos, and creating wildlife documentaries
c)
Expanding urban areas, increasing tourism, and recreational purposes
d)
Manufacturing medicines, cosmetics, and household items
|
|
Nisha Desai answered |
Purpose of Cutting Trees in the Forest
Cutting trees in forests serves several essential purposes, primarily focused on human needs and development. The most significant reasons include:
Procuring Land for Cultivation
- Trees are often removed to create space for agricultural activities.
- Farmers clear forests to grow crops, ensuring food supply for growing populations.
Building Houses and Factories
- Urban expansion requires land for residential and industrial development.
- Timber from trees is used in construction for homes, buildings, and manufacturing facilities.
Making Furniture
- Wood harvested from trees is essential for crafting furniture.
- Items like tables, chairs, and cabinets are made from various types of wood, contributing to the economy and providing jobs.
Environmental Impact
- While cutting trees can support development, it’s crucial to manage this practice sustainably.
- Reforestation and responsible forestry practices help minimize environmental damage and maintain ecological balance.
Conclusion
- In summary, the primary purpose of cutting trees in forests is for land use, construction, and furniture manufacturing, as highlighted in option 'A'.
- Understanding these reasons helps us appreciate the importance of sustainable practices to protect our forests while meeting human needs.
Cutting trees in forests serves several essential purposes, primarily focused on human needs and development. The most significant reasons include:
Procuring Land for Cultivation
- Trees are often removed to create space for agricultural activities.
- Farmers clear forests to grow crops, ensuring food supply for growing populations.
Building Houses and Factories
- Urban expansion requires land for residential and industrial development.
- Timber from trees is used in construction for homes, buildings, and manufacturing facilities.
Making Furniture
- Wood harvested from trees is essential for crafting furniture.
- Items like tables, chairs, and cabinets are made from various types of wood, contributing to the economy and providing jobs.
Environmental Impact
- While cutting trees can support development, it’s crucial to manage this practice sustainably.
- Reforestation and responsible forestry practices help minimize environmental damage and maintain ecological balance.
Conclusion
- In summary, the primary purpose of cutting trees in forests is for land use, construction, and furniture manufacturing, as highlighted in option 'A'.
- Understanding these reasons helps us appreciate the importance of sustainable practices to protect our forests while meeting human needs.
Which of the following is caused by deforestation?- a)Rainfall
- b)Soil erosion
- c)Weed control
- d)Dim sunlight
Correct answer is option 'B'. Can you explain this answer?
Which of the following is caused by deforestation?
a)
Rainfall
b)
Soil erosion
c)
Weed control
d)
Dim sunlight
|
Rishabh Chauhan answered |
Deforestation causes soil erosion causes desertification and floods. It can be prevented by afforestation, proper land management and preventing overgrazing.
How can the movement of water from the soil surface into the ground be affected by deforestation?- a)Increased infiltration rate
- b)No change in infiltration rate
- c)Reduced infiltration rate
- d)Enhanced water retention
Correct answer is option 'C'. Can you explain this answer?
a)
Increased infiltration rate
b)
No change in infiltration rate
c)
Reduced infiltration rate
d)
Enhanced water retention
|
|
Nclex Coaching Centre answered |
Deforestation reduces the infiltration rate, which is the movement of water from the soil surface into the ground, leading to lower groundwater levels and an increased risk of flooding.
Which of the following is the result of the introduction of exotic species?- a)Conservation of wildlife.
- b)Maintenance of biodiversity.
- c)Adverse affect on native species adversely.
- d)The survival of native species.
Correct answer is option 'C'. Can you explain this answer?
Which of the following is the result of the introduction of exotic species?
a)
Conservation of wildlife.
b)
Maintenance of biodiversity.
c)
Adverse affect on native species adversely.
d)
The survival of native species.
|
Rishabh Unni answered |
The introduction of exotic species into an area disturbs the natural ecology balance. They compete with the native species for nutrients, shelter and spread new diseases.
What does the term 'biodiversity' refer to?- a)The number of trees in a forest
- b)The variety of organisms and their interrelationships
- c)The population size of a species
- d)The genetic makeup of a single organism
Correct answer is option 'B'. Can you explain this answer?
a)
The number of trees in a forest
b)
The variety of organisms and their interrelationships
c)
The population size of a species
d)
The genetic makeup of a single organism
|
|
Nclex Coaching Centre answered |
Biodiversity refers to the variety of organisms in an area, their interrelationships, and their interactions with the environment, essential for ecosystem stability.
Which of the following includes all living organisms and all life- supporting regions of the Earth?- a)Biosphere
- b)Ionosphere
- c)Stratosphere
- d)Lithosphere
Correct answer is option 'A'. Can you explain this answer?
Which of the following includes all living organisms and all life- supporting regions of the Earth?
a)
Biosphere
b)
Ionosphere
c)
Stratosphere
d)
Lithosphere
|
Harsh Datta answered |
Biosphere is the name given to the region that include all living organisms and all life supporting regions of the earth.
What increases the chances of natural calamities such as floods and droughts?- a)Urbanization
- b)Deforestation
- c)Industrialization
- d)Climate change
Correct answer is option 'B'. Can you explain this answer?
a)
Urbanization
b)
Deforestation
c)
Industrialization
d)
Climate change
|
|
Nclex Coaching Centre answered |
Deforestation increases the chances of natural calamities such as floods and droughts by disturbing the natural balance, reducing rainfall, and decreasing soil fertility.
What is the variety of life and the diversity of genes, species and ecosystems of a region and their inter connectedness called?- a)Biosphere
- b)Biodiversity
- c)Bioconservation
- d)Biocommunity
Correct answer is option 'B'. Can you explain this answer?
What is the variety of life and the diversity of genes, species and ecosystems of a region and their inter connectedness called?
a)
Biosphere
b)
Biodiversity
c)
Bioconservation
d)
Biocommunity
|
|
Pranab Chawla answered |
The diversity of genes, species and ecosystems of a region is called biodiversity.
Which of the following must be practiced to preserve and conserve the environment?- a)Deforestation
- b)Recycling
- c)Soil erosion
- d)Pollution
Correct answer is option 'B'. Can you explain this answer?
Which of the following must be practiced to preserve and conserve the environment?
a)
Deforestation
b)
Recycling
c)
Soil erosion
d)
Pollution
|
Anushka Joshi answered |
Conservation involves keeping the natural environment in its balanced state. Preservation involves keeping some of the earth's resources for future generations.
Which of the following areas is part of the Pachmarhi Biosphere Reserve?- a)Satpura National Park
- b)Sundarbans National Park
- c)Himalayan National Park
- d)Gir National Park
Correct answer is option 'A'. Can you explain this answer?
Which of the following areas is part of the Pachmarhi Biosphere Reserve?
a)
Satpura National Park
b)
Sundarbans National Park
c)
Himalayan National Park
d)
Gir National Park
|
Valor Academy answered |
The Pachmarhi Biosphere Reserve consists of one national park named Satpura and two wildlife sanctuaries named Bori and Pachmarhi
What is the primary purpose of creating biosphere reserves?- a)Commercial land use
- b)Conservation of biodiversity
- c)Urban development
- d)Agricultural expansion
Correct answer is option 'B'. Can you explain this answer?
a)
Commercial land use
b)
Conservation of biodiversity
c)
Urban development
d)
Agricultural expansion
|
|
Nclex Coaching Centre answered |
Biosphere reserves are established to conserve biodiversity, protect various species, and maintain the natural balance and cultural heritage of the area.
What purpose do wildlife sanctuaries, national parks, and biosphere reserves serve?- a)Commercial land use
- b)Urban development
- c)Conservation of biodiversity
- d)Agricultural expansion
Correct answer is option 'C'. Can you explain this answer?
a)
Commercial land use
b)
Urban development
c)
Conservation of biodiversity
d)
Agricultural expansion
|
|
Nclex Coaching Centre answered |
Wildlife sanctuaries, national parks, and biosphere reserves are established to conserve biodiversity by protecting flora and fauna and their natural habitats from human disturbances.
Deforestation leads to the increase in the level of ______ in the atmosphere.- a)Oxygen
- b)Nitrogen
- c)Carbon Dioxide
- d)Hydrogen
Correct answer is option 'C'. Can you explain this answer?
a)
Oxygen
b)
Nitrogen
c)
Carbon Dioxide
d)
Hydrogen
|
Prepworks Coaching answered |
When trees are cut down, there is more carbon dioxide left in the air. This extra carbon dioxide can cause problems like global warming.
What book keeps a record of all endangered plants and animals?- a)Green Data Book
- b)Blue Data Book
- c)Yellow Data Book
- d)Red Data Book
Correct answer is option 'D'. Can you explain this answer?
a)
Green Data Book
b)
Blue Data Book
c)
Yellow Data Book
d)
Red Data Book
|
|
Nclex Coaching Centre answered |
The Red Data Book records all endangered plants and animals. It is maintained internationally and helps track the conservation status of species at risk of extinction.
What is the role of carbon dioxide in photosynthesis?- a)It is a waste product
- b)It is absorbed by plants
- c)It is not involved in photosynthesis
- d)It is released by plants
Correct answer is option 'B'. Can you explain this answer?
a)
It is a waste product
b)
It is absorbed by plants
c)
It is not involved in photosynthesis
d)
It is released by plants
|
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Prepworks Coaching answered |
Carbon dioxide is absorbed by plants during photosynthesis, where it is used to produce oxygen and glucose, crucial for plant growth.
What is the impact of increased carbon dioxide levels on the Earth's temperature?- a)Decreases the temperature
- b)Stabilizes the temperature
- c)Increases the temperature
- d)Has no effect on temperature
Correct answer is option 'C'. Can you explain this answer?
a)
Decreases the temperature
b)
Stabilizes the temperature
c)
Increases the temperature
d)
Has no effect on temperature
|
|
Nclex Coaching Centre answered |
Increased levels of carbon dioxide in the atmosphere contribute to global warming by trapping heat rays reflected by the Earth, raising the planet's temperature.
Which of the following is/are advantage(s) of forests?- a)Forests provide us with oxygen.
- b)They protect soil and provide habitat to a large number of animals.
- c)They help in bringing good rainfall in neighboring areas.
- d)All of these
Correct answer is option 'D'. Can you explain this answer?
Which of the following is/are advantage(s) of forests?
a)
Forests provide us with oxygen.
b)
They protect soil and provide habitat to a large number of animals.
c)
They help in bringing good rainfall in neighboring areas.
d)
All of these
|
Vaibhav Ghoshal answered |
Forests stop soil erosion, provide shelter and thus prevent floods. Forests provide us with oxygen and rainfall.
Why do migratory birds fly to faraway areas every year?- a)To avoid favourable climate
- b)For change of scene
- c)Due to climatic changes
- d)All of the above
Correct answer is option 'C'. Can you explain this answer?
Why do migratory birds fly to faraway areas every year?
a)
To avoid favourable climate
b)
For change of scene
c)
Due to climatic changes
d)
All of the above
|
EduRev Class 8 answered |
Migratory birds fly to distant areas annually due to climatic changes, often to escape harsh weather conditions in their natural habitats and to find more hospitable environments for laying eggs.
Grazing of animals and crop cultivation is prohibited in :- a)biosphere reserve
- b)wildlife sanctuaries
- c)national park
- d)all of them
Correct answer is option 'D'. Can you explain this answer?
Grazing of animals and crop cultivation is prohibited in :
a)
biosphere reserve
b)
wildlife sanctuaries
c)
national park
d)
all of them
|
|
EduRev Class 8 answered |
To protect our flora and fauna and their habitats, protected areas called wildlife sanctuaries, national parks and biosphere reserves have been earmarked. Plantation, cultivation, grazing, felling trees, hunting and poaching are prohibited there.
What are the consequences of deforestation on the water cycle?- a)Increased rainfall
- b)Stable groundwater levels
- c)Disturbance of the water cycle
- d)Enhanced soil moisture
Correct answer is option 'C'. Can you explain this answer?
a)
Increased rainfall
b)
Stable groundwater levels
c)
Disturbance of the water cycle
d)
Enhanced soil moisture
|
|
Nclex Coaching Centre answered |
Deforestation disturbs the water cycle by reducing the amount of water absorbed and released by trees, leading to changes in precipitation patterns and potentially causing droughts.
Why are migratory birds considered unique?- a)They only live in one habitat
- b)They migrate annually due to climatic changes
- c)They do not lay eggs
- d)They are the only birds that can fly
Correct answer is option 'B'. Can you explain this answer?
a)
They only live in one habitat
b)
They migrate annually due to climatic changes
c)
They do not lay eggs
d)
They are the only birds that can fly
|
|
Nclex Coaching Centre answered |
Migratory birds are unique because they migrate annually to different regions due to climatic changes, seeking more favorable conditions for nesting and feeding.
Desertification refers to ___________________________________.- a)Formation of new deserts
- b)Increased soil fertility
- c)Conversion of fertile land into deserts
- d)Enhancement of plant growth
Correct answer is option 'C'. Can you explain this answer?
Desertification refers to ___________________________________.
a)
Formation of new deserts
b)
Increased soil fertility
c)
Conversion of fertile land into deserts
d)
Enhancement of plant growth
|
|
Nclex Coaching Centre answered |
Desertification is the process by which fertile land becomes desert, typically due to deforestation, soil erosion, and other environmental factors that degrade the soil's quality and reduce its productivity.
What is one measure to limit noise pollution in residential areas?- a)Increase the volume of TV and music systems
- b)Conduct noisy operations away from residential areas
- c)Encourage the use of automobile horns
- d)Plant fewer trees along roads and buildings
Correct answer is option 'B'. Can you explain this answer?
a)
Increase the volume of TV and music systems
b)
Conduct noisy operations away from residential areas
c)
Encourage the use of automobile horns
d)
Plant fewer trees along roads and buildings
|
|
Nclex Coaching Centre answered |
To limit noise pollution, conducting noisy operations away from residential areas and minimizing the use of automobile horns are effective measures.
What are endemic species?- a)Species found in zoos
- b)Species common in urban areas
- c)Species found exclusively in a particular area
- d)Species that migrate annually
Correct answer is option 'C'. Can you explain this answer?
a)
Species found in zoos
b)
Species common in urban areas
c)
Species found exclusively in a particular area
d)
Species that migrate annually
|
|
Nclex Coaching Centre answered |
Endemic species are those that are found exclusively in a specific geographical area and are not naturally found anywhere else, such as the Indian giant squirrel in the Pachmarhi Biosphere Reserve.
How does deforestation affect the fertility of the soil?- a)Increases fertility
- b)Stabilizes fertility
- c)Reduces fertility
- d)Has no effect on fertility
Correct answer is option 'C'. Can you explain this answer?
a)
Increases fertility
b)
Stabilizes fertility
c)
Reduces fertility
d)
Has no effect on fertility
|
|
Nclex Coaching Centre answered |
Deforestation reduces soil fertility by causing soil erosion and removing the top fertile layer, leading to a decrease in nutrient content and productivity.
What happens to the water holding capacity of soil due to deforestation?- a)Increases
- b)Decreases
- c)Remains unchanged
- d)Becomes irrelevant
Correct answer is option 'B'. Can you explain this answer?
a)
Increases
b)
Decreases
c)
Remains unchanged
d)
Becomes irrelevant
|
|
Nclex Coaching Centre answered |
Deforestation decreases the water holding capacity of soil, making it more prone to erosion and reducing its ability to support plant growth.
India holds _____ position on the list of mega biodiversity countries:- a)sixth
- b)third
- c)fifth
- d)tenth
Correct answer is option 'A'. Can you explain this answer?
India holds _____ position on the list of mega biodiversity countries:
a)
sixth
b)
third
c)
fifth
d)
tenth
|
Trisha Vashisht answered |
India is sixth on a list of 12 mega-biodiversity countries in the world. It contains two of the 34 biodiversity hotspots of the world – Eastern Himalayas and the Western Ghats. These areas are very rich in biodiversity.
Chapter doubts & questions for Conservation of Plants and Animals - Preparation for NCEE 2025 is part of Primary 6 exam preparation. The chapters have been prepared according to the Primary 6 exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for Primary 6 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
Chapter doubts & questions of Conservation of Plants and Animals - Preparation for NCEE in English & Hindi are available as part of Primary 6 exam.
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Preparation for NCEE
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