Warm air moves over cold air and replaces it.
It is better to say that they form over warm, tropical water.
Yes, the verb to warm is an action verb; the act of warming, an action.
where it is warm or hot
because austrailia has warm weather and warm weather does not cause glaciers to form
Warm seas with a warm air updraft.
Tornadoes form better in warm areas. The reason for this is warm air holds more energy to power storms than cold air does.
A warm front forms.
A warm front forms.
A warm front forms.
warm
Warm.
The noun form of the adjective warm is warmness and warmth.The noun forms of the verb to warm are warmer and the gerund, warming.