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The inner planets, except earth, are made up of rocks. They have a hard surface. The earth would be one of these except we have water. The outer planets are gas giants and do not have a solid surface.

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What are the inner planets somethimes called?

The four inner planets, Mercury, Venus, Earth, and Mars, are also known as the rocky planets.


The four inner planets are made of rock what are they called?

The four inner, rocky planets are also known as the terrestrial planets. These are; Mercury, Venus, Earth and Mars.


What are the inner planets some time called?

The inner planets are Mercury, Venus, Earth, and Mars. Because of the most part, they have rocky terrain, they are also called Terrestrial Planets.


What is another word for the inner planets?

They are also known as the terrestrial planets (they have a 'terrain' or landscape, unlike the outer gas planets. They are also called the Rocky planets.


Which planets are often called the terrestial planets?

The four inner, rocky planets are also known as the terrestrial planets. These are; Mercury, Venus, Earth and Mars.


What is a another name for the inner planets?

The inner planets are also known as terrestrial planets. This term is used because they have solid rocky surfaces similar to Earth's.


What kind of planets are rocky?

The four inner planets are also known as the terrestrial planets (or the `rocky` planets). These are; Mercury, Venus, Earth and Mars.


What characteristics of all the inner planets share?

Inner planets are also known as Terrestial planets which means they all have a rocky surface.


Which planets are the inner planets?

The four inner, rocky planets (also known as the terrestrial planets) are; Mercury, Venus, Earth and Mars.Mercury, Venus, Earth and Mars


What are inner planets and sometimes what are they called?

Inner planets are a group of terrestrial planets that orbit closest to the sun in our solar system. They are also known as the "rocky planets" and include Mercury, Venus, Earth, and Mars. These planets have solid surfaces, are composed mainly of rock and metal, and have relatively high densities compared to the outer gas giants.


What are the 2 other name of inner planets?

The inner planets are also known as terrestrial planets or rocky planets because they are primarily composed of rock and metal. They are Mercury, Venus, Earth, and Mars.


What are the group of planets called that do not have rings around them?

The inner planets, also known as rocky or terrestrial planets, do not have significant ring systems.