The atmosphere of which of these planets is primary,as opposed to secondary,in origin?
A) Venus
B) Earth
C) Saturn
D) Mars

Name: The atmosphere of which of these planets is primary,as opposed to secondary,in origin? A) Venus B) Earth C) Saturn D) Mars
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Question

Quizplus · Accepted Answer

Saturn has a primary atmosphere, which means it retained its original gases from the solar nebula, mainly hydrogen and helium, unlike Earth, Venus, and Mars, which have secondary atmospheres formed from volcanic outgassing and other processes.

The Atmosphere of Which of These Planets Is Primary,as Opposed