HELP ASAP!!! 30 POINTS!!!
Which of the following statements about air masses is true?
A.
Air masses maintain the same moisture and temperature as they move over new areas.
B.
Air masses are created by patterns of heating and cooling of the Earth's surface.
C.
Air masses are responsible for creating holes in the ozone layer.
D.
Air masses are areas of condensed water vapor, which are also known as clouds.