Why we Indian pray to Sun as GOD ?

SUN - Only source of mass energy - God for us to be worship

Without sun - no evaporation , no rain.
Without Sun - no plants means no oxygen
Without Sun - No energy
Without Sun - No Coal ,Cude Oil which are made up of living beings,plants .
Without Sun - No Light

If we are worship SUN then its nothing wrong.
Sun is GOD for all of us who is visible .
we know that he gives us ample amount of Energy everyday .
We all can never survive without him.