Which of the terrestrial planets has the most difficult time retaining an atmosphere?
A) Mercury
B) Venus
C) Earth
D) Mars

Name: Which of the terrestrial planets has the most difficult time retaining an atmosphere? A) Mercury B) Venus C) Earth D) Mars
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Question

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Mercury has the most difficult time retaining an atmosphere due to its small size and low gravity, as well as its proximity to the Sun, which causes any atmosphere to be quickly stripped away by solar winds.

Which of the Terrestrial Planets Has the Most Difficult Time