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Which of the following conditions shows ...

Which of the following conditions shows the polluted enviorment ?

A

pH of rain water is 5.6

B

amount of carbodioxide in the atmosphere is 0.03%

C

biochemcal oxygen demad 10 ppm

D

Eutrophication

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Knowledge Check

  • Which of the following conditions show the polluted environment.

    A
    pH of rain water is 5.6
    B
    amount of carbon dioxide in the atmosphere is 0.03%
    C
    biochemical oxygen demand is 10 ppm
    D
    eutrophication

  • Which of the following condition show polluted environment ?

    A
    Eutrophication
    B
    BOD is 4 ppm
    C
    pH of rain water is 5.6
    D
    Amount of `CO_(2)` in the atmosphere is 0.03%

  • Which of the following conditions shows the effect of photo-stratification?

    A
    Profundal zone has both heterotrophs and phytoplanktons.
    B
    Profundal zone harbors only heterotrophs.
    C
    Planktons are only found in littoral zone.
    D
    Heterotrophs are maximum in limnetic zone.