Question

Hurricanes start out over the ocean because they get their energy from?

Answer 1

Moisture evaporates from the water. The resulting warm moist air carries enormous amounts of energy. When this air is pulled into a developing hurricane it rises and as a result of this you get the Hurricane.

Answer 2

Salutations!

Hurricanes start out over the ocean because they get their energy from warm  water near the equator. This warm water rises above the surface. If there is more heat, the more energy therefore, the hurricane will be more violent. 

Hope I helped (:

Have a great day!