Match each definition with the correct term.
1. large body of air that has about the same conditions throughout
2. front that occurs when a warm air mass runs into a cold air mass
3. front that occurs between two stalled air masses
4. front that occurs when a warm air mass becomes trapped between two cold air masses
5. front that occurs when a cold air mass runs into a warm air mass.

a. air mass
b. cold front
c. warm front
d. occluded front
e. stationary front