Time: 1 hour
Maximum Marks: 30
Attempt all questions.
Question numbers 1 to 5 carry 1 mark each.
Question numbers 6 to 8 carry 2 marks each.
Question numbers 9 to 11 carry 3 marks each.
Question numbers 12 & 13 carry 5 marks each.
Q1: Fill in the blank: The solid crust or the hard top layer of the earth is called __________. (1 Mark)
Q2: Which of the following is not a natural ecosystem? (1 Mark)
(a) Desert
(b) Aquarium
(c) Forest
(d) Grassland
Q3: Match the following:
Q4: True or False: The lithosphere provides us land for agriculture, human settlements, and is a source of mineral wealth. (1 Mark)
Q5: Odd One Out: Buildings, Rivers, Bridges and Roads (1 Mark)
Q6: Describe the natural environment and provide examples of its components. (2 Marks)
Q7: How do human beings modify the natural environment? (2 Marks)
Q8 : Why is the biosphere important for living organisms? (2 Marks)
Q9: Explain how man modifies his environment and the consequences of such actions. (3 Marks)
Q10: Describe how plants and animals depend on each other in an ecosystem. (3 Marks)
Q11: List and explain the major components of the environment. (3 Marks)
Q12: Explain the importance of ecosystems and the impact of human activities on them. (5 Marks)
Q13: Discuss the relationship between humans and the natural environment, and the need for balance. (5 Marks)
You can find the solutions of this Unit Test here: Unit Test (Solution): Enviornment
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