Question

The boundary that separates different air masses is called a(n)?

Answer 1

It is known as the front

Answer 2

The boundary that separates different air masses is called a front.

A front is the boundary (transition zone) that separates two air masses of different density, different air temperature, different levels of humidity, pressure and wind direction. Front often result in precipitation and causes weather. Cold fronts and warm fronts are the two major types of fronts.