a cold air mass meets a warm air mass. explain what will happen, in terms of the differences in their densities

If the boundary between the cold and warm air masses doesn't move, it is called a stationary front. The boundary where a cold air mass meets a cool air mass under a warm air mass is called an occluded front. ... Because cold air is denser than warm air, cold fronts are able to force warm air out more quickly.

Explanation:

hope this helps u

If the boundary between the cold and warm air masses doesn't move, it is called a stationary front. The boundary where a cold air mass meets a cool air mass under a warm air mass is called an occluded front. ... Because cold air is denser than warm air, cold fronts are able to force warm air out more quickly.

also, give brainless because I'm big-brained

the answer is b & c i believe : )