Question

why the energy can neither be created nor destroyed?? ​

Answer 1

Answer:

The total amount of energy and matter in the Universe remains constant, merely changing from one form to another.

Explanation:

law of conservation of energy

The law of conservation of energy states that energy can neither be created nor destroyed - only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it's added from the outside.