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Planets with little to no atmosphere Rocky surfaces and greater density are located

User Realnumber
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Terrestrial planet

A terrestrial planet, telluric planet, or rocky planet is a planet that is composed primarily of silicate rocks or metals. Within the Solar System, the terrestrial planets accepted by the IAU are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars.
User JLK
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Answer:

they are terrestrial and are the 4 most inner planets in the solar system

User Imranmadbar
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