Weight of a body is less in the mines. Why?
The weight of a body is less in the mines because when we move deeper the earth gravity decreases but our mass is always constant.
Why parachutists are not hurt on the surface of the earth but get hurt on the surface of the moon?
As we all know that the parachute prevents accidents while jumping from height by balancing the velocity of the jumping or falling body. It balances the velocity of the body due to the influence of upthrust given by the atmosphere. But, there is no atmosphere on the moon's surface through the earth's surface has. So, parachutists are not hurt on the earth's surface but get hurt on the moon's surface.