It is known that exposure to carbon monoxide is harmful to animals because

(a) It reduces CO2  transport
(b) It reduces O2  transport
(c) It increases CO2  transport               
(d) It increases O2  transport

Answers (1)

The answer is the option (b) It reduces O2  transport
Explanation: - Exposure to carbon monoxide is harmful to animals because it leads to transport of less oxygen. Carbon monoxide binds with the haemoglobin of the blood, thus leaving oxygen behind. The cells, not being able to respire thus and cannot live for a long time.

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