Multiple choice general knowledge

The four smaller inner planets, Mercury, Venus, Earth and Mars, also called the terrestrial planets, are primarily composed of rock and metal.

  1. True

  2. False

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The inner planets (terrestrial planets) are primarily composed of rock and metal, with high density and solid surfaces. This contrasts with the outer gas giants which are mainly hydrogen and helium with no solid surface.