Earth & Venus.
Venus is the inner planet that has enough gravity to hold on to most gases. With a surface gravity about 90% that of Earth's, it can retain a thick atmosphere primarily composed of carbon dioxide, along with clouds of sulfuric acid. This dense atmosphere contributes to Venus's extreme greenhouse effect, resulting in surface temperatures hot enough to melt lead. In contrast, Mercury, the other inner planet, has too little gravity to retain a significant atmosphere.
Earth has enough gravity to hold on to most gases in its atmosphere. This is due to its moderate gravitational force compared to other inner planets like Mercury, Venus, and Mars.
because they not close enough to sun
inner planet.
Mars is an inner planet.
It is an inner planet.
inner planet
Inner.
The inner planets are closer to the sun, so they are warmer. That means that the gas molecules haVe enough energy to escape the gravitational field of the planet. Jupiter is made mostly of hydrogen gas which is very light, but it is also very cold, so the molecules don't move around very fast and cannot escape the gravity of Jupiter. The other gas planets are even colder. If you look at the gases that ARE on the inner planets, you will find that they are generally heavier, like nitrogen, oxygen and carbon dioxide so their molecules cannot gain enough speed to escape the gravity of the planet.
Of the four inner, rocky planets, Earth is the largest and most massive. As a consequence, it has the highest surface gravity of the four inner planets. The gravity for Venus is around 90% of Earths, while for Mars and Mercury the surface gravity is around 38% of Earths.
Mars is an inner planet, located between Earth and the asteroid belt. The inner planets are rocky and terrestrial, while the outer planets are gas giants.
Venus is an inner planet