Based solely on mass,which of the following terrestrial planets would you expect to retain a secondary atmosphere?
A) Mercury
B) Venus
C) Mars
D) The Moon

Question

Quizplus · Accepted Answer

Venus has the most mass of the terrestrial planets, which means it has a stronger gravity that can retain a secondary atmosphere. Mercury and the Moon have very low masses and weak gravity, so they cannot retain atmospheres. Mars has a lower mass than Venus and a weaker gravity, but it does have a thin secondary atmosphere composed mostly of carbon dioxide.

Based Solely on Mass,which of the Following Terrestrial Planets Would