An air mass is often modified as it moves over the earth's surface.This modification is largely due to:

Question

Quizplus · Accepted Answer

As an air mass moves over the earth's surface, it comes into contact with new surfaces with different characteristics such as water bodies, mountains or forests. The air mass may lose or gain moisture, heat, and stability as a result of the surface exchange. This modification of the air mass is primarily due to contact with the new surface below, making option B the best choice. While lifting along fronts, clouds, jet streams, and strong pressure gradients may also affect air mass modification, they are not as significant as surface exchange.

An Air Mass Is Often Modified as It Moves Over