How Sun formed?

Sun

Before 4.5 billion years our Sun was creates, then most of clouds moving to its surroundings that time Sun's outer solar system temperaure is less than inner solar system temperature and due to Sun's high temperature Hydrogen and Helium gases spread very far and thesre left only those elements which have high melting point and thats why planets are present in the inner solar system while in the outer solar system Hydrogen and Hlium's gas giants exist.

By passing of time these dust clouds (gas giants) convert in mounts (in space) and then these mounts which are planets and those rocks or mounts which are present present in between of Mars and Jupiter did'nt formed in planet tha's why, we see them today as Asteroid belt.

Our Sun is to much bigger, it can store 13,000 planets in itself, only our Sun captured 99.9% area of our Solar system, its surface temperature is 5700 degree and its chrona temperature is 1.5 crore and it provide very much charge particles, these particles spread in above solar system and about 28 billion km for away from Sun they make bubble around the sun which is called "Heliusphere".

It means Sun excreting energy spread about 18 billion km far, due to this energy our water is in liquid state.Solar energy is the necessary for winds,rainfall,agriculture,humans and also for fuels.

The reason behind the Sun is nuclear fusion, it is formed by Hydrogen when Sun's gravity release high pressure on Hydrogen atom then these atoms make bond with each other and convert in Helium and produce high level radiations and these radiations arrived to Earth in the form of energy.

Every day Sun send 700,0000000 Volt energy to us, if we use trees,coals and other things to make energy so, we even could'nt make that energy Sun send to Earth every day.