Question

An ideal air mass source region must meet two criteria. First, it must be an extensive and physically uniform area. The second criterion is that the area is characterized by a general __________ of atmospheric circulation so that air will stay over the region long enough to come to some measure of equilibrium with the surface. A. agitation B. stagnation C. saturation D. increase

Answer 1

The correct option is : B. stagnation

Step-by-step explanation:

Air mass is a volume of air, which is described on the basis of water vapor content and temperature. It has the ability to adapt to the characteristics of surface below it and can travel thousands of miles from its source region.

An ideal source region of an air mass must fulfill the following two criteria:

1. It should be a large and uniform area.

2. the area should have stagnant circulation of atmospheric air .