what must occur for air masses to form fronts?\no they must increase in strength.\no they must collide with…

what must occur for air masses to form fronts?\no they must increase in strength.\no they must collide with each other.\no they must move from west to east.\no they must create air - pressure differences.

what must occur for air masses to form fronts?\no they must increase in strength.\no they must collide with each other.\no they must move from west to east.\no they must create air - pressure differences.

Answer

Brief Explanations:

A front is formed when two air - masses meet and collide. Changes in strength, direction of movement, or creating air - pressure differences are not the defining factor for front formation.

Answer:

They must collide with each other.