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Often in water bodies subjected to sewag...

Often in water bodies subjected to sewage pollution, fishes die because of the:

A

pathogens related to sewage

B

reduction of dissolved `O_(2)` caused byo microbial activity

C

clogging of their gills by solid substance

D

foul smell

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The correct Answer is:
B
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ARIHANT NEET-ENVIRONMENTAL ISSUES-Chapter exercises (A) Taking it together (Assorted Questions of the Chapter for Advanced Level Practice)
  1. Choose the incorrect statement.

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  2. Decomposition of domestic wastes under natural process is included in

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  3. Often in water bodies subjected to sewage pollution, fishes die becaus...

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  4. If water pollution continues at its present rate, it will eventually

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  5. The expanded form of DDT is

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  6. Acid rain occurs in areas where

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  7. Which type of pollution is caused by scooters?

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  8. Fly ash is environmental pollutant produced by

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  9. Most harmful type of environmental pollutants are

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  10. Which process does not result in the return of carbon dioxide to the a...

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  11. Which air pollutant could cause rains to be acidic?

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  12. Why does the oxygen concentration in the water decrease when sewae is ...

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  13. Ozone hole is the

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  14. Which of the following statements is incorrect?

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  15. How human activities increased the supply of fixed nitrogen available ...

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  16. Which of the following is not thought to be a possible consequence of ...

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  17. Ozone is

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  18. The destruction of the ozone layer is most directly linked to the

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  19. Eutrophication in lakes is the direct result of

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  20. Which of these show a result of deforestation and its effect on the en...

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