Near the earth's surface,vertical changes of air density with height are caused primarily by
A)vertical moisture gradients.
B)horizontal moisture gradients.
C)horizontal temperature gradients.
D)vertical temperature gradients.

Question

Quizplus · Accepted Answer

Vertical changes of air density with height are caused primarily by vertical temperature gradients, which affect air pressure and ultimately influence the vertical movement of air masses. As air moves higher in the atmosphere, the temperature typically becomes cooler, resulting in a decrease in air density. This is an important factor in the formation of weather systems and the dynamics of the atmosphere. Moisture and horizontal temperature gradients can also play a role, but they are secondary factors in comparison to vertical temperature gradients.

Near the Earth's Surface,vertical Changes of Air Density with Height