Question

prove that earth has a gravitational force.

Answer 1

in his theory of relativity get gravity is just an illusion what happen is rule gravity has nothing to do with only on earth gravity gives better to Physical object and the moon's gravity causes the ocean ocean Tides divinity gravitational attraction

Answer 2

A/C to Newton
earth has h gravitational force
i.e apple fall on ground not in sky..
just like that all thing we though fall on ground not in the sky.. it means earth has h gravitational force