What effect does an increased altitude have on the percentage that gases compose in the atmosphere?
A) the percentages remain the same but the partial pressures would decrease with altitude
B) the partical pressures remain the same but the percentages would decrease
C) the percentages and the partial pressures would increase
D) the percentages and the partial pressures would decrease

Question

Quizplus · Accepted Answer

The composition of the atmosphere in terms of the percentage of different gases remains relatively constant up to the mesosphere. However, as altitude increases, the atmospheric pressure decreases, leading to a decrease in the partial pressures of the gases, even though their percentages remain the same.

What Effect Does an Increased Altitude Have on the Percentage