carbon dioxide and nitrogen
The main one is carbon dioxide ( about 95%). The next is Nitrogen. There are traces of other gases too.
There are two planets that rotate clockwise, i.e. with retrograde motion; Venus and Uranus.
Jupiter is 90% hydrogen 10% helium and there are small amounts of methane, ammonia, and rock dust
No Venus is a planet, much like our Earth, because it orbits the Sun. A moon is a large body that orbits a planet. Venus is closer to the Sun than the Earth, the second planet from the Sun. The Earth is the third planet from the Sun.
Two planets. Mercury. Venus.
Out of all the planets in our solar system it is closest in size to our planet, the Earth. In fact some astronomers call Venus our sister planet. In addition Venus has the characteristics of an earth in which the greenhouse gases have gone to the extreme. A global warming fiasco if you will. I would say these two things make it pretty amazing. Missed being the oasis in the desert of space by that much. Some see it as a cautionary tale for us on our little blue planet.
Both Mercury and Venus have no known natural satellites (moons).
Venus is one of the hottest planets because its temperture is in the eight hundreds.
Mercury, Venus, Earth, Mars and Pluto are not gaseous. Pluto is sometimes not regarded as a planet. Jupiter, Saturn, Uranus and Neptune are gaseous, although the latter two may have a solid core of frozen gas.
The main gases in Earth's atmosphere are nitrogen, followed by oxygen.
venus
Venus is much closer to the Sun than Neptune and, is the hotter of the two planets.