What is a secondary atmosphere?
A) the atmosphere that escapes
B) the gas captured during the planet's formation
C) the gas farthest from the surface
D) the atmosphere that remains after the planet has formed
E) the gas closest to the planet's surface

Question

Quizplus · Accepted Answer

A secondary atmosphere is the atmosphere that remains after the planet has formed, typically formed from volcanic outgassing or other processes after the primary atmosphere has been lost.

What Is a Secondary Atmosphere