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Class 9- Science - Environmental Science - Short Answers

9th Standard

    Reg.No. :
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Science

Time : 01:00:00 Hrs
Total Marks : 40
    11 x 3 = 33
  1. What are the two factors of biosphere?

  2. According to you, which process of water cycle is adversely affected by human activities?

  3. How do human activities affect nitrogen cycle?

  4. What is adaptation?

  5. What are the challenges faced by hydrophytes in their habitat?

  6. Identify the given plant. How does it adapt itself to its habitat?

  7. Why is it important to conserve water?

  8. List some of the ways in which you could save water in your home and school?

  9. What is grey water?

  10. What are the uses of recycled water?

  11. What is IUCN? What is the vision of IUCN?

  12. 4 x 1 = 4
  13. Roots grow very deep and reach the layers where water is available. Which type of plants develops the above adaptation? Why?

  14. Why streamlined bodies and presence of setae is considered as adaptations of earthworm?

  15. Echo location serves as an adaptation in bats. Justify the given statement.

  16. Farm ponds serve as an excellent water conservation strategy. Why is it impossible for all farmers to construct it in their fields?

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