Question

what is natural and artificial sources of light.

Answer 1

Sun,stars,moon is the natural source of light.
Artificial source of light are made by humans such as fire , candles , oil lamps and electric bulb

Answer 2

Natural sources of light are those sources which emits or gives light on their own such as sun , star , etc..

Artificial sources of light are those sources which are made by human beings and emits light such as electric bulb.