An air mass is a large potion or body of air characterized by a homogeneity of temperature and moisture at any given level.
An air mass is a large group or portion of air with relatively uniform temperature, humidity, and other characteristics that it takes from the water or land below it. Air masses can be up to thousands of miles across and may reach miles into the atmosphere.
Humidity is the total amount of water vapour present in the air. If there are many water vapours present in the air, more will be the humidity. When the air has high humidity, In this case, body sweats cannot disappear and leave our bodies feeling hot and sticky.
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