g-forces are not caused by gravity.
yes, g-force can be experienced in zero-g. just ride a centrifuge.
Anybody who lives on Earth experiences gravity.
mass
Gravity is governed by an "inverse square" relationship. This means gravity gets exponentially weaker the farther away you get. If I am 4 miles away from the center of the Earth, I will experience 1/16th the gravity that someone 1 mile away will experience. I am 4x farther away, but I get 16x less gravity.
They are in a low gravity environment, but it's not zero gravity. The Moon's surface gravity is about a sixth of the Earth's. That's enough to keep Moon buggies in place.
If you introduce air into a space where gravity is zero, then air exists there. A current example is the inside of the International Space Station, where the crew live and work in a "shirtsleeve environment" that includes air, pressure, and warmth, but they also live and work in an environment of weightlessness, or what is popularly but erroneously called "zero gravity".
No. You experience Earth's gravity constantly.
Anybody who lives on Earth experiences gravity.
Is this a school question that you simply don't know the answer to?
mass
It doesn't Earth has more gravity.
gravity can be simulated with the use of an advanced gravity simulator which uses acceleration to equal the weight of the body
Gravity is governed by an "inverse square" relationship. This means gravity gets exponentially weaker the farther away you get. If I am 4 miles away from the center of the Earth, I will experience 1/16th the gravity that someone 1 mile away will experience. I am 4x farther away, but I get 16x less gravity.
Yes. Gravity drops off at the square of the distance. So the further you are from something the less the force of gravity you experience.
no.
There isn't a zero gravity environment, but if there was, planets wouldn't form. Planets form by very large rock all attracting to each other and gain enough energy that the center pulls the surrounding rock and smooths then into a sphere. So if a zero gravity environment existed. There would be no planets.
They cant, if the did they planet would fall apart, zero-gravity doesnt exist.
closest to the Earths inside like the core