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Answered 2011-02-15 04:24:49

Because Jupiter is mainly hydrogen.

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What is the main differences between the terrestrial and Jovian planets?

The cores of jovian planets are very similar to terrestrial ones. Jovian planets are simply a more evolved form of terrestrial planet contrary to popular perception. Jovian planets often have a lot of hydrogen, helium, methane, and/or volatile ices to make up its atmosphere to the point where oceans of these components cover the terrestrial core and billow the atmosphere to large proportions. Terrestrial planets absorbed less of these components from the leftover solar nebula leaving only the rocky surface and maybe some gas of an atmosphere.

What terrestrial planet has the most dense atmosphere?

Venus has the densest atmosphere out of the terrestrial planets.

Why are the components of Jovian atmospheres so different from those of terrestrial planets?

They are different because terrestrial planets is any of Earth like planets including: Mercury, Venus, Mars, and Earth. However jovian planets are the Jupiter like planets including: Jupiter, Saturn, Uranus, and Neptune

Which of the terrestrial planets has the densest atmosphere?

Venus has the densest atmosphere of all the terrestrial (earth-like) planets. Earth's atmosphere is just right for us, Mars' atmosphere is much thinner, Mercury doesn't have one.

In what ways is Earth different from the other terrestrial planets?

The Earth is different from the other terrestrial planets in several ways. It has an atmosphere containing 21 percent oxygen. It has liquid water on the surface. It has life. It has only one satellite.

What is different from terrestrial planets from gas giants?

Terrestrial planets are solid and gaseous planets are made of gas. Gaseous planets are huge and terrestrial planets are small. Gas giants are far from the sun and terrestrial planets are close to the sun.

What are the two main reason why Jovian planets have much thicker atmoshperes than the Terrestrial planets?

While terrestrial planets are made of rock and have gases in the atmosphere, jovian planets are made almost entirly of gases. If an atmosphere is made of gases in a planet, then the atmosphere of the planets with more gases will be thicker.

Which of the terrestrial planets has oxygen in its atmosphere?

Earth is the terrestrial planet that has oxygen in its atmosphere. Some other elements in the atmosphere are nitrogen and carbon dioxide. Mercury, Venus, and Mars are the other terrestrial planets, but their atmospheres are composed of other elements. For example, Venus' atmosphere is composed primarily of carbon dioxide.

What planet has the thinner atmosphere of the terrestrial planets?

The thinnest atmosphere belongs to planet Mercury . . . it may have no atmosphere, at all.

Do terrestrial planets have atmospheres?

Some do. Three of the four terrestrial planets in the solar system have atmospheres: Venus, Earth, and Mars. Only Mercury lacks an atmosphere.

What type of atmosphere do terrestrial planets have?

There are a wide range of atmospheres for terrestrial planets (smaller, rocky planets) depending on their sizes, orbits, and composition. In our solar system, there are 4 very different atmospheres for the 4 terrestrial planets. Mercury - no appreciable atmosphere due to small size and closeness to the Sun Venus - hot, extremely dense carbon dioxide atmosphere (Greenhouse effect) Earth - cool, low density nitrogen atmosphere, oxygen maintained by green plants Mars - very thin, cold carbon dioxide atmosphere, due to small size and distance from the Sun

How are terrestrial planets different from the Jovian planets?

Terrestrial planets have terra firma, a.k.a. hard ground. The gas giants are giant balls of gas.

How are the terrestrial planets different from the Jovian planets?

Yes because if they were the same they wouldn't have different names

Is Mars made of gas?

Mars is one of the terrestrial or "rocky" planets. Mars has an atmosphere, but it is a very thin atmosphere.

Why are the terrestrial and Jovian planets so different in composition?

While the terrestrial planets are mostly rocky with metallic cores, the Jovian planets are huge balls of gas. The Jovian Planets are also much larger than the terrestrial ones.

Why do Jovian planets have a thicker atmosphere than the terrestrial planets?

Jovian planets do not have a solid surface, therefore their atmospheres are thick all the say to where their surface would be. Their atmospheres have more gasses than those surrounding terrestrial planets.

Why are the terrestrial planets different from the sun?

The sun is a star, not a planet. the terrestrial planets are also made of either rock, ice, or gas.

Do the terrestrial planets have atmosphere?

Yes. all the terrestrial planets have atmospheres. however, in the same area that there are 10 Billion Billion Atoms in earth's atmosphere, (about 1 cubic in) there are about 10 million atoms in mercury's. maercury has almost no atmosphere, and we don't even know what it is, but both mars and Venus's atmospheres are 95 % CO2, but venus's atmosphere is thick, even thicker than earth's, but mars's is thinner than earths. all the terrestrial planets have some kind of atmosphere.

Why are the densities of the terrestrial and jovian planets so different?

The terrestrial planets are primarily composed of rock and the jovian planets are mostly gas (primarily Hydrogen). Rock has a higher density than Hydrogen, giving the terrestrial planets a higher density.

An outer layer of gas on a terrestrial?

This is the planets atmosphere, it can then be broken down into further sections.

What ways is earth different from other terrestrial planets?

It has oxygen in its atmosphere. Most of its surface is covered with liquid water. Life can be found almost everywhere.

What makes the outer planets different from inner plants?

inner=terrestrial outer=non terrestrial

Do terrestrial planets have a thick or thin atmosphere?

It varies. Mercury has almost no atmosphere at all, while Venus has a thick atmosphere. It is not as thick as the atmosphere of a gas giant.

Why do terrestrial planets so small compared to gas planets?

im not sure if this is goin to completely answer your question, but ill give it a shot. the gas plantes are actually very small, it is just their atmosphere that is so large. their solid core is actually tiny, and if im not mistaken, smaller than the terrestrial planets. the thickness of the atmosphere gives the allusion that they are larger. the terrestrial planets have much thinner atmospheres making them appear much smaller. but, i guess the atmosphere is considered part of the planet and that's why the gas planets are still considered larger. the key is the atmosphere.

How are the four inner planets different from outer space?

they are different as the first 4 inner planets are known as terrestrial planets andouter are known as jovian planets.

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