Gravity doesn't care what, if anything, is in the space between the objects.
Whatever it is has no effect on the mutual gravitational forces of attraction
between them. There's no such thing as "gravitational shielding".
air stays around the earth because of gravity
Gas, has mass and therefore will produce its own gravitational pull. Except for objects such as gas planets and nebulae, this effect is small. However, on a planet with an atmosphere, the presence of the gas will produce an upward force. This force, called the buoyancy force, does not affect gravity directly, but since it is directed upward will partly counteract its effects on objects. The upward force is equal to the weight of the gas the object displaces. For most objects in Earth's atmosphere, the effect is not noticeable, reducing the apparent weight by only a fraction of a percent. It becomes significant for things with a very low density. If an object is less dense than air (e.g. a helium balloon) the buoyancy force will be greater than the force of gravity, and the object will float upward.
No, it does not affect things that are not solid or things that can hold volume. Such as gas. etc
No, gravity is not a type of Matter; This is a force that the earth exerts to the objects under it's range.
air resistance
Gravity pulls gas to the center of gravity (i.e. the Earth). Less dense gases like helium (in balloons) are displaced by denser gases like oxygen. It also can cause them to be compressed by the gas above, which is what keeps the earths surface pressurized and causes thin air up mountains.
The principle of buoyancy relates to the upward pressure that a liquid or gas substance exerts on objects surrounding it. When balloons are filled with gas that exerts less downward force (due to mass and gravity), they will float.
gravity is what holds the gas giants. As the gas giants are made up of gases...gravity must hold them in place or they will run off to space..that rhymes.
specific gravity for common natural gas : 0.55 to 0.7 Specific gravity is unitless and is give the density of the gas divided by the density of air at 20C and 1bar.
Upon expulsion of various gases it is propelled upwards by the force of gravity. Under the laws of gravity, objects that push an object away (the rocket expelling gases) will be pushed on by that object (the gas pushes the rocket up).
gravity pulls gas molecules down to earth because the force of it keeps us on the earth
When there is less gravity, there is less gas is this true or false