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Natural Resourc...

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  • Question 1
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    Which of the following is/are the smallest global reservoir(s) of water?

  • Question 2
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    Identify the group of molecules, essential to life, which contains nitrogen.

  • Question 3
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    Match the following:

    Column - A Column - B
    A. Conversion of nitrate into nitrogen 1. Nitrification
    B. Conversion of ammonia into nitrites and then into nitrates 2. Ammonification
    C. Conversion of atmospheric nitrogen into ammonia 3. Denitrification
    D. Conversion of organic nitrogen within the remains of plants or animals back into ammonium by bacteria or fungi 4. Nitrogen fixation

  • Question 4
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    Which of the following represents the correct sequence of nitrogen fixation in plants?

  • Question 5
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    Identify the components marked A, B and C in the given diagram of oxygen cycle.

  • Question 6
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    As the air rises, it expands and cools. This cooling causes

  • Question 7
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    Which of the following gases absorbs the harmful radiation of the sun?

  • Question 8
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    Which of the following is/are the harmful effect(s) of ozone depletion on human beings, animals, plants and environment?

  • Question 9
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    Which of the following has a gaseous biogeochemical cycle system?

  • Question 10
    1 / -0

    Which of the following cycles is not included in the four biogeochemical cycles?

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