yes, just like Venus, it is the hottest planet and its atmosphere is made up of purely carbon dioxide.
Yes they do. They just may have different atmospheres. Earth has mostly nitrogen while Venus has mostly carbon dioxide.
oxygen
Other than Earth, no planets have been confirmed to be habitable. We do know of planets in other star systems upon which liquid water could theoretically exist but we can't measure the composition of the planets atmospheres therefore we can't know for certain whether or not they are habitable.
The first factor is distance from the sun. Most of the planets are too close or too far from the sun making them too hot or too cold. All the planets other than Earth have unbreathable atmospheres or, in the case of Mercury, no atmosphere. The four outer planets are gas planets with no solid surfaces.
The four Jovian planets in our solar system are Jupiter, Saturn, Uranus and Neptune. The four terrestrial planets are Earth, Venus, Mars and Mercury. The difference between the Jovian planets and the terrestrial planets is that Jovian planets are enormous and made of gasses and ices while terrestrial planets are relatively small and made of rocks and metals. Other differences are that terrestrial planets have high densities, rotate slowly, have no moons or magnetic fields and have thin atmospheres (Earth is an exception because it has a moon and a magnetic field), while Jovian planets have low densities, rotate rapidly, have many moons and a magnetic field and have thick atmospheres.
You can see the other planets and the moon (at night), because like the Earth, they all reflect light from the Sun.
yes, some other planets like Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune have atmospheres
Earth is the only planet known to have a significant amount of oxygen molecules in its atmosphere.
oxygen
It is estimated that the Solar System is 4.6 billion years old including Earth and the other planets.
some planets are bigger and some are smaller. some have different atmospheres. some of the planets are almost pure gas. some planets have as much as like 60 moons while ours only has one
All massive objects (including all planets) have gravity.
Other than Earth, no planets have been confirmed to be habitable. We do know of planets in other star systems upon which liquid water could theoretically exist but we can't measure the composition of the planets atmospheres therefore we can't know for certain whether or not they are habitable.
They are too hot or too cold. They do not have atmospheres.
You can compare it to many other planets including: Earth, Uranus, and Mars.
78% nitrogen 20% oxygen 1% of other gases
The first factor is distance from the sun. Most of the planets are too close or too far from the sun making them too hot or too cold. All the planets other than Earth have unbreathable atmospheres or, in the case of Mercury, no atmosphere. The four outer planets are gas planets with no solid surfaces.
The two other terrestrial planets in our solar system with atmospheres would not support life. Venus is the hottest planet, with crushing atmospheric pressure. Anyone would die very quickly on its surface without a good space suit. Mars has a very thin atmosphere, mostly carbon dioxide (a greenhouse gas), but essentially no free oxygen either. There are other planets in our galaxy, orbiting other stars. We know what the atmospheres of some of those planets are like. So far we haven't found any much like earth, but that is because earth is small, and only recently have we developed the technology to find planets as small as ours.