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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
- All the s-block elements of the periodic table are placed in the groups….
- Permanent hardness of water is due to the presence of
- The energy of an electron in the nth Bohr orbit of hydrogen atom is
- For a thermodynamically reversible reaction in a galvanic cell at temperature T,
- When ethyl chloride and alcoholic KOH are heated, the compound obtained is
Topics: Environmental Chemistry (28)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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