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Zoology - Environmental Issues Practice Question Paper

12th Standard EM

    Reg.No. :
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Biology

Time : 01:00:00 Hrs
Total Marks : 40
    5 x 1 = 5
  1. As per 2017 statistics, the highest per capita emitter of Carbon dioxide in the world is

    (a)

    USA

    (b)

    China

    (c)

    Qatar

    (d)

    Saudi Arabia

  2. PCB is a major component of ______________

    (a)

    e-waste

    (b)

    Agro waste

    (c)

    sewage

    (d)

    Plastics

  3. A lake which is rich in organic waste may result in

    (a)

    Drying of the lake due to algal bloom

    (b)

    Increased population of fish due to lots of nutrients

    (c)

    Mortality of fish due to lack of oxygen

    (d)

    Increases population of aquatic organisms due to minerals

  4. Identify the incorrect statement.
    (i) EcoSan toilets is a sustainable way for handling human excreta by using dry composting toilets
    (ii) It reduces waste water generation
    (Ui) It is based on recovery and recycling of nutrients from excreta
    (iv) EcoSan toilets are used in several parts of India and Srilanka.

    (a)

    i and ii only

    (b)

    iii and iv only

    (c)

    all the above

    (d)

    none of the above

  5. Assertion (A): Evolution.of Greenhouse gases leads to Global warming
    Reason (R): The energy released by the greenhouse gases move away from the atmospheric

    (a)

    A is right R is wrong

    (b)

    A is wrong R is right

    (c)

    Both A ana R are correct

    (d)

    R explains A

  6. 2 x 1 = 2
  7. Condition of a water body caused due to nutrient enrichment __________

    ()

    Eutrophication

  8. A phenomenon of rapidly aging lake due to pollutants from Anthropogenic activities is ______

    ()

    Accelerated/Cultural Eutrophication

  9. 1 x 1 = 1
  10. I am called as the Forest Man of India? Who am I?

    ()

    Jadav Payeng

  11. 1 x 2 = 2
  12. Assertion: UV rays penetrate deep into the skin and cause cancer.
    Reason: They can cause damage to DNA.
    A. If both A and R are true and R is correct explanation for A
    B. If both A and Rare true but R is not the correct explanation for A
    C. If A is true but R is false
    D. Ifboth A and R are false.

  13. 1 x 2 = 2
  14. (i) Cadmium is a non-degradable pollutant.
    (ii) Carbon monoxide is a major component of a Automobile exhaust.
    (iii) Catalytic converter reduce release of industrial pollutants.
    (iv) According to USEPA, there is a direct link between noise and harm.
    (a) iii
    (b) i and iv
    (c) ii and iii
    (d) iv

  15. 3 x 2 = 6
  16. What is SMOG and how it is harmful for us?

  17. Name two major International environmental conventions.

  18. What is the unit of measuring ozone thickness?

  19. 4 x 3 = 12
  20. Discuss the role of women in protection and conservation of forests.

  21. How does carbon monoxide affect us?

  22. What is Chipko movement?

  23. What do you mean by Ecosan Toilets?

  24. 2 x 5 = 10
  25. Discuss briefly the following :
    a. Catalytic converter
    b. Greenhouse gases
    c. Ecosan

  26. What is the impact of agrochemicals on the living organisms?

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