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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 rapid change of pH near the stoichiometric point of an acid-base titration
- Reaction between an acyl halide and the sodium salt of a fatty acid results in
- Be resembles much with
- Reaction BaO₂(s) ⇌ BaO(s) + O₂(g) ; ΔH = +ve.In equilibrium condition,
- On the extraction of iron, the slag produced is
Topics: Environmental Chemistry (28)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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