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The following characteristic of the outer planets is C. Have rings.
Jupiter, Saturn, Uranus, Neptune have rings. Although Jupiter looks like it doesn't have it, it is still part of the outer planets.
The outer planets are not close to the sun that is the inner planets (Mercury, Venus, Earth and Mars). They have a lot of moons, more than the inner planets. And lastly they don't have rocky surfaces in fact they're surface is clouds and gas.
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A characteristic of outer planets C) Have rings.
The four outer planets are all gas giants made primarily of hydrogen and helium. They have thick gaseous outer layers and liquid interiors. The outer planets have numerous moons, as well as planetary rings.
- These planets were more massive than the inner planets and were able to attract large amounts of hydrogen and helium, which is why they are composed mainly of hydrogen and helium, the most abundant elements in the solar system, and in the universe.
- Jupiter and the other planets farthest from the sun are called the outer planets. The first four outer planets—Jupiter, Saturn, Uranus, and Neptune—are much larger and more massive than Earth, and they do not have solid surfaces. Because these four planets are all so large, they are often called the gas giants.
- Neptune and Uranus are referred to as 'ice giants' because of the presence of high amounts of volatiles on them.
- Due to the great distance from the Sun, the gas and ice giants take longer to orbit. The greater the distance from the Sun, the more time these planets take to complete one trip around our Sun.
- Giant planets and their moons are located in the outer region of our Solar System. These planets include Jupiter, Saturn, Uranus and Neptune, and the dwarf planet Pluto.
- There are many short-period comets and centaurs that also orbit in this area. Solid objects in our outer Solar System have a high proportion of volatiles, like methane, ammonia, and water, due to their large distance from the Sun compared to the ones in the inner Solar System.
- The giant outer planets are called Jovian planets, and they make up around 99% of the total mass that orbits the Sun.
- Saturn and Jupiter together are around 400 times the mass of our planet and contain large amounts of gases, which are Hydrogen and Helium in liquid form.
- Therefore, the term 'gas giants' was assigned to them. Neptune and Uranus are less massive than the giants and are made of ice. These two planets measure up to less than 20 times the mass of Earth each. Gas giants have numerous moons.
Learn more about outer planets, refer
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