Subject :NSO Class : Class 5
Ans 1:
Class : Class 6
The pull of the Earth is called gravitational force. eg are the coming down of a ball
Ans 3:
Class : Class 5
Whenever we throw a ball up in the air, it falls back to the ground . This is because of a force called gravitational force or gravity.This is the force in which all the objects are pulled towards the earth. Sir Isaac Newton was the first man to discover it.