what is the importance of the sun to the biological or physical processes?

Question

I hope you will tell me the whole process.

Answer 1

To add to Diamond's explanation, remember the food chain that you learned about in lower school? Small animals eat plants. Larger animals eat smaller animals and so on and so forth until the top of the food chain dies and decays back into the soil to be used in the growth of new plants. But the plants need sunlight to live by way of photosynthesis. And that light comes from the sun of course.
So in addition to the heating of the earth and being the engine that powers our weather (which distributes liquid water--another thing plants need--all over the planet) the sun also sustains the cycle of life and the food chain.

Answer 2

Just as roast a piece of meat ina spit byu rotating it uniformly, the sun heats the earth uniformly as it rotates around its own axis . this is beneficial for the creation oand sustenace of the living beings , including the plants . If the sun were not there , there would have ben no life at all on the earth.For the biological processes to initiate and continue , there is should abe a conducive temperature which the sunalsone can provide permanently. No life will thiruve in cold alone or heat alone .the sun because of the roatation of the earth ,provides a condition that is suitable for the creation ,& sustnence of life .