b. They move warm air masses in certain directions.
e. They affect the movement of winds that come from oceans.
Explanation:
Prevailing winds are local winds that persists over an area for a period of time. Like other weather elements, they have important effect on the net precipitation in an area.
These winds are influenced by the energy they derive from the sun.
When they blow across an ocean, because they are warm, they carry water vapor.
They interact with winds originating from an ocean.
