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Predominantly hydrogen and helium.

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14y ago

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What are the characteristics of outer and inner planets?

The inner planets are the first 4 planets from the sun, they are made of rock. After the in er planets is an asteroid belt. Behind the belt are the 4 outter planets. They are made of gas and are called "gas giants". These are called outter planets.


How many planets are mainly made up of gas and how mainly made up of rock?

There are 4 rocky planets and 4 gaseous planets in the solar system


What are the general characteristics of the 4 outer and 4 inner planets?

The 4 inner planets (Mercury, Venus, Earth, and Mars) are solid planets made of rock. The 4 outer planets are gas giants.


What gasses are the outer planets made off?

In the solar system we have 4 rocky planets and 4 gas giants. The gas giants consist of mainly CO2 and SO2


Why do outer planets have gas?

because the outer planets are made of gas.


What planets are considered to be made of gas?

In our solar system there are 4 "Gas Giants": Jupiter, Saturn, Uranus, Neptune.


What does the name gas giants suggest about four of the planets?

The planets are made out of gas.


What are the 4 gas planets?

Jupiter, Saturn, Uranus, and Neptune are gas planets.


How do the planets in the two groups different?

The first 4 planets, Mercury, Venus, Earth, and Mars, are called rock planets, and the last 4, Jupiter, Saturn, Uranus, and Neptune, are the gas planets. The main differences between these two groups are that the rock planets are made of rock, the gas planets are made of gas, the rock planets are typically smaller than the gas planets, and the gas planets have rings.


Is Mars made out of Rock or Gas?

Mars, like all the Terran planets (closest 4 planets to the Sun) are rocky.


Are otter planets made out of gas?

i think the question is " are other planets made out of gas" because as far as i know there are no otter planets, although that would be cool. not all planets are made out of gas, some are gas though. neptune is a gas giant, that's just one example though


What are the outer planets and how are they similar?

The outer planets are the planets that are made of gas. Each of the outer planets are mad of gas and can not hold life.