Which energy change occurs during boiling?
some heat energy of the substance is lost.
heat energy of the substance remains the same.
most heat energy of the substance is lost.
heat energy is absorbed by the substance.

D

Explanation:

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.