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Fish die in water bodies polluted by sewage due to
Options
(a) pathogens
(b) Clogging of gills
(c) Decreases in D.O
(d) Foul smell
Correct Answer:
Decreases in D.O
Explanation:
Microorganisms from sewage consume all dissolved oxygen and fish get deprived of this oxygen and ultimately die.
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Topics: Environmental Chemistry
(28)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Phenylethyl ether when boiled with concentrated HBr gives
- Which one is not equal to zero for an ideal solution
- The oxidation number of phosphorus and basicity of acid in pyrophosphoric acid
- What is the volume of ’20 volume H₂O₂. required to get 5000 cm³ of oxygen at STP?
- A drug which is sturcturally related to adrenaline is
Topics: Environmental Chemistry (28)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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