Question

define energy and write it's various source​

Answer 1

Answer:

Energy is the capacity of a physical system to perform work. Energy exists in several forms such as heat , kinetic or mechanical energy, light, potential energy , electrical, or other forms. Energy is the ability to do work. Energy sources could be classified as Renewable and Non-renewable.

Answer 2

Answer:

Energy is convertible form of mass.

There are numerous sources of energy such as sun, food.