Which of the following is true of gases in the heterosphere?
A)The hydrogen,helium,oxygen and nitrogen are well mixed.
B)Hydrogen and helium occur at the top of the heterosphere and oxygen and nitrogen dominate in the lower heterosphere.
C)Oxygen and nitrogen occur at the top of the heterosphere and hydrogen and helium dominate in the lower heterosphere.
D)Nitrogen occurs at the top,followed in descending order by helium,oxygen and hydrogen.
E)Oxygen occurs at the top,followed in descending order by hydrogen,helium,and nitrogen.

Question

Quizplus · Accepted Answer

In the heterosphere, the gases are layered in order of increasing atomic mass. This means that hydrogen and helium, being the lightest gases, will be found at the top of the heterosphere, while the heavier gases like oxygen and nitrogen will be found lower down. Therefore, option B is the correct choice where hydrogen and helium occur at the top of the heterosphere and oxygen and nitrogen dominate in the lower heterosphere.

Which of the Following Is True of Gases in the Heterosphere