Question

What are terrestrial planets ?
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Answer 1

Answer:

they are mostly made up of rock

Explanation:

terrestrial planets are mostly made/composed up of rocks or metals. in our solar system terrestrial planets are in the inner side closest to the sun. example Earth

Answer 2

Answer:

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 are the inner planets closest to the Sun, i.e. Mercury, Venus, Earth, and Mars.

hope it helps you!!