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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 hybridisation of C₂H₂ is
- What is the magnetic moment for Mn²⁺ ion in low spin state
- K₂Cr₂O₇ on heating with aqueous NaOH gives
- Which of the following substances is used, in laboratory
- The reaction of aqueous KMnO₄ with H₂O₂ in acidic conditions gives
Topics: Environmental Chemistry (28)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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