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they are made mostly of gas except for pluto which is mostly ice

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Q: What are the four outermost planets mostly made of?
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What are the outermost planets mostly made of?

Ices.


How many planets are made up of gases?

All of the planets in the solar system have at least some trace gases in their atmospheres, but the planets known as gas giants are composed of mostly gases. They are the four outermost planets, Jupiter, Saturn, Neptune, and Uranus. In contrast, the four innermost planets, Mercury, Venus, Earth, and Mars, are called the terrestrial planets and are mostly composed of solids.


Which planets are mostly made from atmosphere?

The four outer gas giants.


What are the planets made of gas called?

There are four planets that are made out of gas: Jupiter, Saturn, Urans and Neptune. These planets are called the "gas giants" . The other four planets (Earth, Mercury, Venus and Mars) are mostly made out of rock.


What are the first four inner planets mostly made of?

Mercury , venus , our earth and mars


What do the four planets closest to the sun have in common?

They are small rocky objects as opposed to the next four which are mostly made of g.as


Planets mostly made of balls of gas?

Four planets are comprised primarily of gas and are known as gas giants. They are Jupiter, Saturn, Neptune and Uranus.


What are planets mostly made out of?

Well, if you take all the planets together, taking into account that Jupiter and Saturn are enormous and consist mostly of hydrogen and helium gasses, then you'd have to say that the planets are made mostly of hydrogen and helium gas. But if you are allowed to give separate answers for the different planets, you'd say that the four terrestrial planets are made mostly out of silicate (rocky) material with a core of nickel-iron alloy, that Jupiter and Saturn are made mostly of a mixture of hydrogen and helium gasses, and that Urnaus and Neptune are made mostly of hydrogen and helium gases with substantial cores of water ice.


What are Earth and the other planets closest to the sun are made mostly of?

Earth and the other planets are mostly made of rock.


What are Earth and the other planets closest to the sun are made mostly?

Earth and the other planets are mostly made of rock.


Why are the smallest planets the densest?

because they are made of mostly metal and rock while the bigger planets are mostly made of gas


How mant planets are made of gas?

Within our solar system, four planets are mostly made of gas - Jupiter, Saturn, Uranus and Neptune, but all are thought to possibly have a solid core of some type.