34. Carbon dioxide gas lowers the amount of oxygen that enters the blood.

True

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False

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Solution

The correct option is A True
Carbon dioxide is denser than oxygen. So, carbon dioxide displaces oxygen.
Therefore, when the amount of carbon dioxide gas increases, it lowers the amount of oxygen that enters the blood.
Hence, the given statement is true.

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Similar questions

Carbon dioxide gas is heavier than both nitrogen and oxygen. Why does not it from lower layer in the atmosphere?

Identify the correct match

I: Coronary artery – Oxygen-rich blood

II: Pulmonary vein – Carbon dioxide-rich blood

III: Pulmonary artery – Oxygen-rich blood

IV: Hepatic vein – Carbon dioxide-rich blood

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