Question

venus and earth have about the same mass, but mars is less massive. what can you say about the thickness of their atmospheres due to their mass? select two correct answers. mars has a thinner atmosphere than earth. all three have about the same thickness of atmosphere. venus and earth have about the same thickness of atmosphere.

Explanation:

The mass of a planet affects its gravitational pull, which in turn affects the thickness of its atmosphere. A more massive planet can hold a thicker atmosphere. Since Venus and Earth have about the same mass, their gravitational pulls are similar, so they should have about the same thickness of atmosphere. Mars is less massive than Earth, so its gravitational pull is weaker, leading to a thinner atmosphere than Earth. The option "All three have about the same thickness of atmosphere" is incorrect because Mars has less mass and thus a different (thinner) atmosphere thickness compared to Earth and Venus.

Answer:

A. Mars has a thinner atmosphere than Earth
C. Venus and Earth have about the same thickness of atmosphere