Which of the following planets is least likely to retain a thick atmosphere?
A)A planet with a hot atmosphere,low gravity
B)A planet with a hot atmosphere,high gravity
C)A planet with a cool atmosphere,low gravity
D)A planet with a cool atmosphere,high gravity

Question

Quizplus · Accepted Answer

A planet with a hot atmosphere and low gravity is the least likely to retain a thick atmosphere because the thermal energy of the gas molecules is high enough to overcome the planet's weak gravitational pull, allowing the molecules to escape into space.

Which of the Following Planets Is Least Likely to Retain