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Natural Resourc...

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  • Question 1
    1 / -0

    A considerable part of harmful ultraviolet radiation from the sun does not reach the surface of the earth. This is because high above the earth's atmosphere is a layer of ---------.

  • Question 2
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    Depletion of the ozone layer causes:

  • Question 3
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    Which of the following causes erosion of the topsoil in hilly regions?

  • Question 4
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    Today, the concentration of greenhouse gases is very high because of:

  • Question 5
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    Which one of the following pairs in mismatched-

  • Question 6
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    Crop rotation is carried out for

  • Question 7
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    Maximum contribution of $$O_{2}$$ is from ______________.

  • Question 8
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    Degradation of proteins play a part in _______.

  • Question 9
    1 / -0

    Biosphere is a

  • Question 10
    1 / -0

    Fertility of soil is measured by its ability to:

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