Answer :
Air masses form over large surfaces with uniform temperatures and humidity, called source regions
Air Masses: It is defined as a large volume of air in the atmosphere which contains mostly uniform temperature and moisture.
Air masses are classified according to the temperature and moisture characteristics of their source regions.
- It has nearly uniform conditions of temperature and humidity at any given level of altitude.
- When winds move air masses, they carry their weather conditions from the source region to a new region.
- Maritime air masses form over the water and are humid. Continental air masses form over land and are dry.
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