Question

the sun is (planet or Sun)​

Answer 1

Answer:

THE SUN is the main source of solar system.

It helps in keeping the life forms of earth alive.

Explanation:

I think this will help you out

Answer 2

The Sun is the star at the center of the Solar System. It is a nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy mainly as light and infrared radiation. It is by far the most important source of energy for life on Earth.