Question

why sun does not attracts earth. explain

Answer 1

All objects attract each other. Some are negligible whereas some are huge. Similarly the sun and the earth attract each other. Since the mass of the sun is much greater than the earth, it’s force on the earth is greater than the force on the sun due to the earth.

Answer 2

sun does not attract the Earth because the gravitational of force is greater in sun than the earth i.e. F1 sun>F2 earth.
for example if we compress the earth it's size and shape change but the mass of the earth remains same .And if we compress the earth and if we continue this process and at the time comes when the earth changes into Black Hole any other planet which have 3 times greater than the planet Jupiter can change into black hole
earth creates a gravitational force but it is not more so it doesn't attract sun.