Venus
Venus is sometimes regarded as Earth's sister planet. In some ways they are very similar:
Because of these similarities, it was thought that below its dense clouds Venus might be very Earthlike and might even have life. But, unfortunately, more detailed study of Venus reveals that in many important ways it is radically different from Earth. It may be the least hospitable place for life in the solar system.
Mars
Although Venus has a close elemental similarity, Mars has the closest physical structure, as it has retained usable gaseous carbon dioxide and liquid water. However, just as Venus has an atmosphere that is too dense, Mars is conversely too small to provide suitable atmospheric density.
Titan
Saturn's largest moon has an atmosphere that is analogous to Earth's, but much colder. It has nitrogen, oxygen, and some water. However, the thick atmosphere is so cold that water is always solid ice. Methane is instead the compound that exists as a gas, liquid, or frozen solid.
This is kind of a difficult question, because none of the planets has an atmosphere that's much like Earth's. The answer would have to be either Venus or Mars (Mercury has no atmosphere to speak of, and the outer planets are essentially ALL atmosphere).
Venus' atmosphere is much thicker than Earth's (surface pressure about 90x Earth's), and Mars' is much thinner (about 1/90th that of Earth... don't read too much into this, I've played a little fast and loose with the numbers to make it come out symmetrical like that).
If I had to choose one, I'd say Mars.
The structure of Jupiter is very unlike that of the Earth. The visible surface is, in fact, the uppermost layers of clouds of methane and ammonia. The interior of Jupiter is made up of a solid core of material similar to that of the Earth with a diameter of about 24,000 km (13,000 mi). Surrounding this, with a diameter of about 100,000 km (56,000 mi), is a metallic mixture of hydrogen and helium. On the Earth we know these two as gases which at very low temperatures can be liquefied; in Jupiter's interior the pressure is so high that the hydrogen takes up a state in which it behaves like a metal. Outside this metallic hydrogen zone is a shell of liquid molecules, mainly hydrogen and helium, with the cloudy atmosphere, about 1000 km (560 mi) deep, above. The temperatures in Jupiter's atmosphere are very cold ranging from -130°C (-200°F) at the top of the clouds to 30°C (90°F) about 70 km (45 mi) below.
Mars because if there would be a planet that we could live on, it would be mars. Most capable of life.
Venus - even though they are VERY different.
There is no planet with an atmosphere remotely like Earth's.
None of the planets in the solar system has an atmosphere much like Earth's, so it's kind of difficult to answer that. Mars is probably the best candidate, though it's much thinner.
Mars
About 100 extrasolar planets are thought to have been discovered. All are giants and probably most resemble Jupiter
Jupiter NeptuneThe planet that most extrasolar planets resembles Jupiter.Jupiter(apex)Most of the confirmed Exoplanets are larger gaseous planets with large masses. These are easier to detect and confirm due to their size. They most resemble Jupiter, although many are thought to be much larger than our largest planet.
Mercury, even though the closest planet to the sun, isn't the hottest planet because of the thing it lacks and that most planets have, an atmosphere. Venus is the hottest planet, the reason?... Venus's atmosphere. What makes its atmosphere special? It is 92 times as dense as Earths atmosphere and consists of 98% carbon dioxide. These properties make Venus's atmosphere like a magnifying glass that has the same diameter as the sun and the magnification power of an electron microscope, and a heat blanket that is so ridiculous that there isn't even a simile for it.
There are two such planets, Mars and Venus. Venus has a much thicker atmosphere than Mars, but both atmospheres are about 95% carbon dioxide.
The most dense layer of the atmosphere is the troposphere is the most dense layer because it is at the bottom of the atmosphere. The troposphere is where all our weather happens. It also has the highest air pressure. But more specifically, the earths atmosphere is most dense at the surface.
Well considering most other planets with atmospheres have methane and hydrogen as major components of their atmosphere, it would likely ignite.
nitrogen is the most common element in the earths atmosphere
no
About 100 extrasolar planets are thought to have been discovered. All are giants and probably most resemble Jupiter
Depth of the atmosphere. Gas planets have the thickest and largest of atmospheres. Below gas planets atmospheres are pools of hydrogen or in some cases volatile ices that form in a giant ocean above the surface. It's estimated that Jupiter's rocky surface is only about the size of three Earths but the bloated atmosphere makes for most of the planet.
These planets are Jupiter, Saturn, Uranus and Neptune.
The weight.
Blue.
Closest to the earths serfus.
Nitrogen
the troposphere
Troposphere