oxygen
No. As the name gas giant implies, these planets are made largely of gas. They have extremely thick atmospheres.
The planets with the most tenuous atmospheres in our solar system are Mercury and Mars. Mercury has a very thin exosphere primarily composed of oxygen, sodium, hydrogen, and helium, while Mars has a thin atmosphere mostly made up of carbon dioxide, with traces of nitrogen and argon. Both planets lack substantial atmospheric pressure compared to Earth, making their atmospheres extremely tenuous.
Ganymede has a extremely thin atmosphere mainly composed of oxygen however is extremely tenous so there it's almost no air
Space does not "lose" oxygen as it is a vacuum. Oxygen is present in the Earth's atmosphere, but it becomes extremely sparse as you move away from the planet. The lack of oxygen in space can make it uninhabitable for humans without proper life support systems.
Mars has an extremely thin atmosphere made of carbon dioxide.
No. As the name gas giant implies, these planets are made largely of gas. They have extremely thick atmospheres.
The giant outer planets Jupiter, Saturn, Uranus, and Neptune have extremely thick atmospheres of hydrogen, helium, methane, and ammonia. Titan, the moon of Saturnalso has a methane-ammonia atmosphere.
Mercury and Mars do not have significant atmospheres. Mercury's atmosphere is extremely thin and mainly consists of gases released from the planet's surface, while Mars' atmosphere is very thin, composed mostly of carbon dioxide with trace amounts of other gases.
The two planets in our solar system with little to no atmosphere are Mercury and Mars. Both planets have extremely thin atmospheres compared to Earth, with Mercury's atmosphere consisting mainly of oxygen, sodium, hydrogen, helium, and potassium, and Mars' atmosphere comprised primarily of carbon dioxide.
The moon has no atmosphere, which is why there is no air. The Earth's atmosphere is about 62 miles thick.
All the planets are capable of maintaining a gaseous atmosphere, but Mercury and Mars have only very thin atmospheres - to the point that Mercury is usually considered to not have an atmosphere and Mars is considered to barely have an atmosphere. Earth is still maintaining an atmosphere - for which we should all be grateful (despite gloom and doom predictions from global climate change enthusiasts this is unlikely to change any time soon) Venus has an extremely thick atmosphere. Jupiter, Saturn, Uranus, and Neptune are "gas giants" - which means the atmosphere of each planet occupies the majority of the volume - we think. At the very least they all definitely have considerable atmospheres.
Venuses atmosphere is extremely thick
Ganymede has a extremely thin atmosphere mainly composed of oxygen however is extremely tenous so there it's almost no air
venus has the densest atmosphere
Mercury has no atmosphere so it is EXTREMELY hot in sunny side and EXTREMELY cold in parts of the planet
Mercury has an extremely thin atmosphere which is made up of atoms blasted off its surface by the solar wind, a constant stream of particles coming from the outer layer of the sun. Because Mercury is so hot, these atoms quickly escape into space. Unlike the stable atmospheres of Earth and Venus, Mercury's atmosphere is constantly being replenished.
Space does not "lose" oxygen as it is a vacuum. Oxygen is present in the Earth's atmosphere, but it becomes extremely sparse as you move away from the planet. The lack of oxygen in space can make it uninhabitable for humans without proper life support systems.