Sun is the major Source for the lifes on the earth... Sun have the Millions of little as well as huge benefits for the Life living on the earth...

but due to The God order Pakistan have the four weathers.. one of those there is the Summer Which is the hotest weather carier for the earth.. Sun falls his golden rays on the earth for benefites but due to this with the many benefits there is the very side effects for the life style like Cancer etc and Darkness of coloure is also reason of these rays