Our Environment Model Question Paper

6th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Science

Time : 02:00:00 Hrs
Total Marks : 50
    4 x 1 = 4
  1. Identify the fresh water ecosystem

    (a)

    Pond

    (b)

    Lake

    (c)

    River

    (d)

    All of them

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

    (a)

    Recycling

    (b)

    Reuse

    (c)

    Pollution

    (d)

    Reduce

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

    (a)

    Air pollution

    (b)

    Water pollution

    (c)

    Noise pollution

    (d)

    None of the above

  4. Any substance that causes pollution is known as a _________________ 

    (a)

    pollution

    (b)

    pollutant

    (c)

    abiotic factors

    (d)

    biotic factors

  5. 6 x 1 = 6
  6. Primary consumers that eat plants are called _________.

    ()

    herbivorous

  7. __________ is the process of converting waste materials into new materials.

    ()

    Recycling

  8. The 3R’s are Reduce, __________ and Recycle.

    ()

     Reuse

  9. Ecosystem originated without human intervention is called a _______________

    ()

    natural ecosystem.

  10. ________________ is a place in which fish and other water creatures and plants are maintained

    ()

    Aquarium

  11. The ________________ reduce the excreata and the dead bodies of animals into primary simple components and puts them back into soil.

    ()

    micro organism

  12. 5 x 1 = 5
  13. Biotic factor

  14. (1)

    Animals

  15. Sewage

  16. (2)

    Air pollution

  17. Fertilizers

  18. (3)

    Water Pollution

  19. Smoke

  20. (4)

    Land pollution

  21. Abiotic factor

  22. (5)

    Sun

    1 x 2 = 2
  23. Draw an energy flow diagram.

  24. 2 x 2 = 4
  25. What is meant by pollution?

  26. What is meant by incineration?

  27. 5 x 2 = 10
  28. Define ecosystem.

  29. What are the two types of ecosystems?

  30. What are the types of pollution.

  31. Name some pollutants.

  32. How can we reduce water pollution?

  33. 3 x 3 = 9
  34. What is biodegradable waste?

  35. Write the importance of the food chain.

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

  37. 2 x 5 = 10
  38. Write a short note on noise pollution.

  39. How can we reduce air pollution?

*****************************************

Reviews & Comments about 6th Science - Our Environment Model Question Paper

Write your Comment