Question

different between warm and cold air mass

Answer 1

Basically, a weather front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.

Answer 2

heeyee mate here is ur answer
warm air is always lighter than cold air
that's why warm air moves towards cold air..
hope this pretty clear to u
be happy always ☺️ ☺️