What happens when gravitational force changes?

If gravity force of earth changes,

1.The things which adhere on the surface and atmosphere will get definitely disturbed.

2.The matters which are within the gravitational field will experience the dislocation.

3.The cosmic ray intrusion to the earth will change drastically.

4.The weight of the matter around the whole world will change.

5.The escape velocity of the earth will change.

6.The moon will collide on earth, if gravitational force increases and the moon will move away from the earth ,if gravitational force decreases .If this happen then life in earth will be destroyed.