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Environmental I...

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  • Question 1
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    Limit of B.O.D. prescribed by Central Pollution Control Board for the discharge of industrial and municipal waste waters into natural surface waters, is 

  • Question 2
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    Which of the following strategy is not a correct approach to reduce global warming?

  • Question 3
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    Sewage drainage into water bodies is harmful for fishes because

  • Question 4
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    High BOD indicates

  • Question 5
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    The gas that causes the depletion of the ozone layer thereby allowing more UV radiations to reach the Earth is

  • Question 6
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    Exposure of plants to high fluoride concentration results in necrosis or chlorosis characteristically in 

  • Question 7
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    Genetic erosion is due to

  • Question 8
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    In a sewage plant, BOD is indicated as high. After sometime it shows a decrease then

  • Question 9
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    What is not useful to increase agriculture production?

  • Question 10
    1 / -0

    Which one of the following is the chief ozone-depleting substance used in refrigerators and air conditioners as coolant?

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