Air has a variable composition and hence there is more oxygen at higher altitudes than at lower altitudes.

True

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False

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Solution

The correct option is B False
The “thin” air at high altitudes has considerably less oxygen and pressure. This is because the earth's gravity holds the oxygen close to the surface so much so that half of the oxygen in the atmosphere is found below 18,000 feet.

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Similar questions

Air at high altitude has a higher percentage of oxygen as compared to that at low altitude.

The mountaineers carry oxygen with them because:

(a) At an altitude of more than 5 km there is no air.

(b) The amount of air available to a person is less than that available on the ground.

(d) The pressure of air is higher than that on the ground.

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