Oxygen comprises ~21% of atmospheric air at sea level. Even at higher altitudes, this percentage does not change. However, the density of air decreases as altitude increases. In simple terms, this means there are less oxygen molecules in the air
My Travel experiences in and out of India
Oxygen comprises ~21% of atmospheric air at sea level. Even at higher altitudes, this percentage does not change. However, the density of air decreases as altitude increases. In simple terms, this means there are less oxygen molecules in the air
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