Which statement describes the density of the inner planets?

Question

All the inner planets are dense.
The inner planets are less dense than the outer planets.
Earth is dense, while the other inner planets are not.
Mercury and Venus are dense, while Earth and Mars are not.

Answer 1

The most accurate statement describing the density of the inner planets is:

The inner planets are less dense than the outer planets.

The inner planets (Mercury, Venus, Earth, and Mars) generally have higher densities compared to the outer gas giant planets (Jupiter, Saturn, Uranus, and Neptune), which are composed primarily of lighter gases and ices. However, among themselves, the inner planets can vary in density, with Earth being the densest.