Advantages & Disadvantages of gravity

Advantages of gravity

- Because of gravity there is a waterfall which we use today for generating energy
 

 - Because of gravity there is rain that pours on our land.
 

Disadvantages of gravity

- Earth's gravity can pull any large rocks or asteroids , which once entered into our atmosphere can produce  catastrophic damage.
 

- Because of gravity there could be a falling objects from a high rise buildings, airplanes, spaceships that can kill human.
 
- A human that will fall from about 20 feet or so above the ground could be fatal because of gravity.