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Inner part of planet contains molten magma or core. Its hot due to intense pressure.

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Q: Why is the interior of the earth and other inner planets hot?
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Related questions

Are there any other inner planets other than mars?

Earth, Venus, and Mercury are also inner planets.


What other planets are in the inner group?

Mercury, Venus, Earth, and Mars are called the inner planets.


How is Earth different from the other inner planets?

how is earth different from the othetr inner planets


Is earth the largest of all inner planets?

No Earth isn't the biggest inner planet. Venus is. Even though it is hotter it is bigger than all of the other inner planets.


What other planets did differentiation occur?

Differentiation occurred in other inner planets, besides Earth.


How is the earth surface different from the other inner planets?

In a word : "water".


Did differentiation occur in other inner planets besides Earth?

Yes.


Do other planets have a molten core?

Earth seems to be the correct size to enable a slowly cooling environment for the interior of the planet. Smaller planets cool much more quickly. Earth's solid inner core is gradually growing larger, however, and will someday completely solidify.


What kind of planets are the first four inner?

Mercury, Venus, Earth, and Mars are the first four inner planets. The asteroid belt is what separates the inner and outer planets from each other. There are thousands of asteroids in the asteroid belt.


Why do they call some planets Inner and Outer planets?

The inner and outer planets are broken up by the asteroid belt between Mars and Jupiter. Mercury, Venus, Earth, and Mars are "inner planets" because they are on the side of the asteroid belt closest to the sun. All other planets are considered "outer planets".


Which planet of the solar system is neither an inner planet nor an outer planet?

The planets are either inner or outer planets. There are 8 planets. And of those eight planets: Mercury, Venus, Earth, and Mars are the inner planets. While: Jupiter, Saturn, Uranus, and Neptune are the outer planets.


Why is the Earth's outer core molten while other planets have solid cores or do they?

Earth seems to be the correct size to enable a slowly cooling environment for the interior of the planet. Smaller planets cool much more quickly. Earth's solid inner core is gradually growing larger, however, and will someday completely solidify.