We know the role of Sun in our solar system and its importance to life on Earth. What would have happened if the Sun were bigger or smaller than it is now?

If it was bigger it would be hotter, if it was smaller it would be colder

Explanation:

The bigger the sun is the more heat it gives i guess TwT

Hey mate here is your answer, hope it helps you.

Explanation:

If for any reason the Sun shrank smaller than the Earth, this shrunken Sun wouldn't have the mass to create fusion and would burn out completely. Our solar system would lose its only star. ... Earth's mass would be at least 333,000 times bigger than it is now. Imagine the gravity that planet would have.

the form of energy changes and the total energy increases0l