Our Environment Book Back Questions

6th Standard

    Reg.No. :
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Science

Time : 00:45:00 Hrs
Total Marks : 30
    5 x 1 = 5
  1. Identify the fresh water ecosystem

    (a)

    Pond

    (b)

    Lake

    (c)

    River

    (d)

    All of them

  2. Producers are________

    (a)

    Animals

    (b)

    Birds

    (c)

    Plants

    (d)

    Snakes

  3. It is a biodegradable waste.

    (a)

    Plastic

    (b)

    Coconut Shell

    (c)

    Glass

    (d)

    Aluminium

  4. It is an undesirable change that occurs in air and water.

    (a)

    Recycling

    (b)

    Reuse

    (c)

    Pollution

    (d)

    Reduce

  5. Usage of chemical pesticides and fertilisers causes ________ pollution.

    (a)

    Air pollution

    (b)

    Water pollution

    (c)

    Noise pollution

    (d)

    None of the above

  6. 3 x 2 = 6
  7. Write any two things that can be recycled.

  8. What are the types of pollution.

  9. Give one example of a food chain in an aquatic ecosystem?

  10. 3 x 3 = 9
  11. How can we reduce water pollution?

  12. Write the importance of the food chain.

  13. What would happen if an organism is removed from the food chain?

  14. 2 x 5 = 10
  15. Give two examples of how you can avoid or reduce waste?

  16. Write a short note on noise pollution.

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