Cool, moist, heavy air replaces rising hot air
clouds
precipitation (rain)
low pressure
It gets warmer.
warm front rises on top of the cold front.
clouds
CLOUDS
RAIN
it gets warmer as it rises
precipitation (rain)
low pressure
low pressure
Warm water expands and rises, cool water contracts and sinks.
Warm air rises at the equator and cold air sinks at the poles. Warm air expands and cool air contracts and compresses.
It gets warmer.
The warm air rises
it gets warmer