Why is the sun the most important star?

1 Answer

For people living on earth Sun is the nearest star.

Explanation:

Sun gives us heat and light. With out Sun our temperature on earth will drop considerably and oceans will freeze..All food production is depend upon photosynthesis and we need sun light for it.
Sun is the center of ht solar system and its huge mass 98% of all solar system keeps the planets in stable orbit.
As Sun's energy is from fusion it will last for another 5 billion years.