Nobody can fully answer this question. Do some reading about geodesics.
We have no reason to think that the force of gravity has or ever will become weaker over time.
Answer: Yes. Gravity affects everything. I don't know why this is even a question. Answer: The reason something is "heavy" in the first place is because of gravity.
The main reason is that Earth has more mass than several billion cars have.
Gravity is the reason of things falling down. It is the force exerted by earth,which attract things towards the centre of earth.
The reason why is because of air. Air is just made up of atoms and gravity works on holding down mass and air has no mass. Where water is a liquid and has mass so gravity holds it down. So when you jump in the water you have less mass then the water does so gravity does not work on you when in the water.
Gravity.
No. They orbit Earth; and the reason they orbit is because of gravity.
We have no reason to think that the force of gravity has or ever will become weaker over time.
Yes, this is the reason why we have an atmosphere
Gravity.
newton discovered gravity.. he was curious to know the reason behind the falling apple from the tree
There's no known reason why anything should happen to Earth's gravity, and nothing is expected to.
Gravity from the sun causes Saturn to revolve around the sun while its gravity is the reason it has moons, rings and matter making it up.
The only reason would be gravity.
Gravity is the reason all planets are round. The pull of gravity from the sun fought the gravity from whithin a planet to create a round mass.
Answer: Yes. Gravity affects everything. I don't know why this is even a question. Answer: The reason something is "heavy" in the first place is because of gravity.
Yes - that's the reason Earth has an atmosphere.