explain why a descending mass of air would tend to become drier?

Question

i need the answer for this question. thanks alot

Answer 1

Air from higher up is already drier.

As it descends it warms up owing to increasing pressure, just as your bicycle pump heats up from compressed air.

The water thus becomes even more difficult to condense out of it.

Answer 2

JiveSly is correct.
Air compresses as it moves downward in the air column. This causes Adiabatic Heating .
The ability to hold water vapor increases with temperature.
As a ratio of the available water vapor to this ability decreases, the air "dries"

Answer 3

The absolute humidity would stay the same, but the relative humidity would decrease since descending air warms up.

For the same amount of water vapor (expressed in grams or ounces or whatever you prefer to use), lower temperature means higher relative humidity, and higher temperature means lower relative humidity.

Answer 4

(Higher altitude = Thinner air) (Lower = Thicker)
The lower it travels the more dense it becomes. The molecules get compressed and collide which causes Heat Energy...and dries...

Answer 5

descending air moves from lower to higher temperature.

at higher temp, its capacity to hold humidity increases. Therefore it is drier.

Actually, not sure!!!!

Answer 6

Evaporation through movement caused by friction.