Question

comparing types of fronts
match each front with its description.
warm front
cold front
occluded front
stationary front
when a cold air mass and a warm air mass meet and do not move
when a cold air mass slides under a warm air mass
when a warm air mass slides over a cold air mass
when two cold fronts force a warm front up and block it from the surface

Explanation:

Each front type is defined by the interaction of air masses:

1. A warm front forms when warm air slides over denser cold air.
2. A cold front forms when dense cold air pushes under warm air.
3. An occluded front occurs when two cold fronts trap and lift a warm air mass away from the surface.
4. A stationary front happens when cold and warm air masses meet but neither can advance.

Answer:

warm front → when a warm air mass slides over a cold air mass
cold front → when a cold air mass slides under a warm air mass
occluded front → when two cold fronts force a warm front up and block it from the surface
stationary front → when a cold air mass and a warm air mass meet and do not move