Answer :
Stationary fronts form between warm and cold air masses, while
cold fronts form when a cold air mass advances against a warm
air mass.
What are Stationary fronts?
These are the fronts which are formed when a cold front or
warm front stops moving. The formation is usually between the
warm and cold masses.
Cold front on the other hand are formed when cold air is more
advanced against the warm air mass.
Read more about Stationary mass here https://brainly.com/question/2892867