Previous year MCQs

Environment & Ecology UPPSC 2013 GS-I
Question

Which one of the following air pollutants can affect blood stream leading to death?

Answer & Solution

Answer: (Detailed Solution Below)

Option D: Carbon monoxide

Detailed Solution:

The correct answer is “Carbon monoxide”.
During the respiration process, carbon monoxide is inhaled; it combines with the haemoglobin present in the blood, thus reduces the oxygen carrying capacity of blood sometimes resulting in human death.

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