Sewage drained into water bodies kills fishes because:?

Pollution Mcqs
BILAL KHATTAK0
A.It gives off a bad small
B.It removes the food eaten by fishes
C.It increases the competition with fishes for dissolved oxygen
D.Excessive CO2 is added to water
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Related Mcqs:

  1. Eutrophication of water bodies resulting to killing of fishes is mainly due to non-availability of ______________.
  2. Scolidon or dog fish belong to the group of fishes called__________??
  3. Sewage water can be purified for recycling with the action of:?
  4. Which of the following marine fishes are considered direct descendents of fresh water ancestors??
  5. A cooling tower in a refrigeration system
  6. Which of the following fishes excrete large volume of diluted urine??
  7. BOD of a river water is found very high. This means water __________?
  8. Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss??
  9. As compared to tap water the BOD of sewage polluted water shall be:?
  10. Water pollution:?

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