Based solely on mass and distance from the Sun, which of the following terrestrial planets would you expect to be unable to retain a secondary atmosphere?
A) Mercury
B) Venus
C) Earth
D) Mars
E) Venus and Earth

Question

Quizplus · Accepted Answer

Mercury is the closest planet to the Sun and has the smallest mass of all the terrestrial planets. This means that it has the weakest gravitational pull and is unable to retain a secondary atmosphere.

Based Solely on Mass and Distance from the Sun, Which