1 How is the atmosphere around Earth held in place?

Answer 1

Gravity helps keep earth and all of the other planets in orbit because the sun has gravity that pulls the planets in orbit. The gravity on the earth has nothing to do with the orbit, but the gravity on the sun has lots to do with it [I think the moon gas gravity to.] without the suns gravity the earth would be just out there in space moving in any direction, and with that we would die by either frost-bite or heat stroke. We would die by frost-bite when we move to far away from the sun and we would die of heat stroke when we got to close to the sun.

Answer 2

The atmosphere around Earth is held in place by gravity. Gravity pulls the gas molecules in our atmosphere towards the Earth's surface, preventing them from escaping into space. This force keeps the gases from dissipating and maintains the thickness of the atmosphere.

Answer 3

Well gravity is the only force that keeps the grip on all planets from a star. Well actually it is the gravitons in gravity that give it the actual force. Without gravitons in the gravity would be a very weak force. So if Gravitywasn't there i wouldn't be here giving this information to you. I hoped you find this information helps. : ) Your welcome. P.S. I am only 11. SO i hope you already knew the question you asked if not that is OK because when it comes to astronomy i have the IQ of an intelligence of a brainy college student when in Astronomy. Just wanted to let you know. O and P.S.S. YOGURT!!!!

Answer 4

The gravitational force between Earth and Sun, combined with the "inertia" of the Earth, results in the Earth orbiting the Sun. The Earth's inertia means it would travel in a straight line if it were not for gravity making it follow the curved path which is its orbit.

It's the same sort of thing with the Earth and Moon, but now the Earth is the "primary" around which the Moon orbits.

(I'm slightly simplifying things. For example, the Earth and Moon revolve around their common center of mass.)

Answer 5

Yes, they both have gravity. The Sun's gravity holds the 8 planets in orbit, while the gravity of the Moon kept the astronauts from floating into outer space, especially, when they jumped up and down to get around.

Answer 6

You're half-way there. The mutual, equal gravitational forces between the Earth

and Sun maintain the Earth's stable, closed, elliptical orbit around the Earth/Sun

common center of mass.

Answer 7

Due to gravity, our Earth has an atmosphere in the first place. Otherwise, the gases would quickly diffuse into space. Also, gravity makes the atmosphere more dense closer to the Earth - the upper layers push down against the lower layers.

Answer 8

Gravity holds the Earth's atmosphere in place.

Answer 9

Yes.

Yes.

Yes.

Yes.

Answer 10

Yes, anything that is in orbit is held in place by gravity.