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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
- The H – O – O bond angle in H₂O₂ is
- According to law of mass action rate of a chemical reaction is proportional to
- Change in enthalpy for reaction,2H₂O₂ → 2H₂O + O₂
- Cosin used to detect end point of precipitation titration by absorption is called
- What is the composition of tear gas
Topics: Environmental Chemistry (28)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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