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Environmental I...

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  • Question 1
    1 / -0

    BOD is

  • Question 2
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    When domestic sewage mixes with river water 

  • Question 3
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    The major source of BOD in the river Ganga is 

  • Question 4
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    'Biological Oxygen Demand' (BOD) is a measure of 

  • Question 5
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    Which of the following is a correct statement?

  • Question 6
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    Increase in BOD of water reservoir is due to

  • Question 7
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    BOD is related with 

  • Question 8
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    Which of the following is the main factor of water pollution?

  • Question 9
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    Ozone-layer is getting depleted because of

  • Question 10
    1 / -0

    An effect of deforestation is

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