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Unit Test (Solutions): Earth — Our Shared Home | Our Wondrous World Class 5 - New NCERT PDF Download

Time: 45 Minutes
M.M.: 20
Attempt all questions.
Question numbers 1 to 6 carry 1 mark each.
Question numbers 7 to 9 carry 3 marks each.
Question number 10 carries 5 marks.

Q1. Which statement best explains “nature has no boundaries”?
(a) Countries never trade
(b) Air, water, animals, and seeds move across borders
(c) People never travel
(d) Oceans are not connected

Ans: (b) Air, water, animals, and seeds move across borders

Q2. Fill in the blanks:
Rosy starlings migrate in winter from/to India.

Ans: Russia/Mongolia

Q3. True or False:
Chillies are originally from South America and were brought to India by travellers.

Ans: True

Q4. The thought “the world is one family” is expressed in which Sanskrit phrase?

Ans: Vasudhaiva Kutumbakam

Q5. Match the following:

Ans:
Unit Test (Solutions): Earth — Our Shared Home | Our Wondrous World Class 5 - New NCERT

Q6. Which statement about sugar is correct?
(a) Sugar-making started in Europe
(b) Jaggery and sugar techniques spread from India
(c) Sugarcane grows only in deserts
(d) Sugar replaced water

Ans: (b) Jaggery and sugar techniques spread from India

Q7. Give three examples from the chapter that show how cultures are connected through travel and trade.

Ans: 1. Yoga practised worldwide.
2. Chillies’ journey from South America to Indian kitchens.
3. Mexican marigolds are becoming common in Indian festivals.

Q8. How do migrating birds like rosy starlings help farmers and ecosystems? Give three points.

Ans: 1. Eat crop pests like locusts/grasshoppers.
2. Link distant ecosystems by migration.
3. Indicate seasonal changes and healthy habitats.

Q9. What does “Vasudhaiva Kutumbakam” teach us? List three attitudes or actions it inspires.

Ans: 1. Respect and care for all people and nature.
2. Share knowledge, resources, and help across borders.
3. Protect Earth as a shared home for current and future generations.

Q10. Your class is curating a “Web of Life” wall. Plan a 5-part display showing connections across countries:
(a) One animal migration,
(b) One food that travelled to India,
(c) One idea/skill India shared,
(d) One plant that moved to India,
(e) A short message on caring for Earth together.

Ans:
(a) Rosy starling: Russia/Mongolia → India (pest control, seasonal travel).
(b) Chillies: South America → India (spice revolution in cuisine).
(c) Yoga: India → world (health, harmony).
(d) Mexican marigold: Mexico → India (festivals, decoration).
(e) “Oceans connect, winds guide, people share—care for our one Earth.”

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FAQs on Unit Test (Solutions): Earth — Our Shared Home - Our Wondrous World Class 5 - New NCERT

1. What is the significance of Earth as our shared home?

Ans. Earth is considered our shared home because it is the only planet known to support life. It provides essential resources such as air, water, and food, which are crucial for all living beings. Additionally, Earth’s diverse ecosystems and natural beauty contribute to the well-being of humans and other species. Understanding this significance encourages people to take responsibility for protecting and preserving the environment for future generations.

2. How can individuals contribute to the protection of Earth?

Ans. Individuals can contribute to the protection of Earth in several ways, including reducing waste, recycling, conserving water and energy, and using public transportation or carpooling. Simple actions like planting trees, supporting sustainable products, and participating in community clean-up activities also help protect the environment. Educating others about environmental issues can further amplify individual efforts.

3. What are some major environmental challenges facing Earth today?

Ans. Some major environmental challenges include climate change, pollution, deforestation, loss of biodiversity, and overpopulation. Climate change leads to extreme weather patterns and rising sea levels, while pollution affects air and water quality. Deforestation reduces habitats for countless species, and loss of biodiversity threatens ecosystem stability. Addressing these challenges requires global cooperation and sustainable practices.

4. Why is biodiversity important to the health of our planet?

Ans. Biodiversity is crucial for maintaining healthy ecosystems, as it ensures resilience against environmental changes and supports the services that nature provides, such as pollination, water purification, and soil fertility. A rich variety of species contributes to food security and medicinal resources, while also enhancing aesthetic and recreational value. Protecting biodiversity is essential for sustaining life on Earth.

5. How does climate change affect Earth’s ecosystems?

Ans. Climate change affects Earth’s ecosystems by altering weather patterns, which can lead to habitat destruction, shifts in species distribution, and increased risks of extinction for vulnerable species. Changes in temperature and precipitation also impact food production and water supply. Additionally, climate change can cause more frequent and severe natural disasters, disrupting both human and wildlife communities.

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Sep 06, 2025 Last updated

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