The planet's strong force of gravity holds the atmosphere down and stops it escaping. Atmospheric gases have masses, and the Earth's atmosphere has a mass of about 1.2 kg per cubic metre.
YES
Gases
The Outer Planets are called Jovian Planets!
The outer planets primarily consist of hydrogen and helium. They also contain trace amounts of other gases like methane, ammonia, and water vapor. Each outer planet has a unique composition and varying amounts of these gases.
No, the outer planets are not lighter than the inner planets. In fact, the outer planets are generally much larger and more massive than the inner planets. This is because they are primarily composed of gases and ice, which makes them less dense but more massive.
They are massive enough to have a strong gravitional field which stops the gases escaping.
Outer planets are made of gas because they formed far from the sun where it was cooler, allowing volatile gases like hydrogen and helium to condense and accumulate. The enormous gravitational forces of these planets then captured and retained these gases, preventing them from escaping into space.
The Earth's atmosphere is held in place by its gravity. Gravity pulls gas molecules towards the surface of the planet, preventing them from escaping into outer space. Additionally, the Earth's magnetic field also plays a role in protecting the atmosphere by deflecting solar wind and preventing it from stripping away the gases.
YES
The inner planets are all rocky planets. The outer planets are completely made up of gases. The inner planets are much smaller than the outer planets.
No. The outer planets do not have solid surfaces. Those planets are made of gases held together by gravity.
the inner planets made up of rocks while the outer planets are made up of gases and liquids.
The outer plants are made out of gases mostly.
Gravity and inertia.
They are all made of gas
Helium and hydrogen =|
Uranus