When the Martian axis tilt is large, the Martian poles
A) expand and remain permanently frozen, thinning the atmosphere
B) contract and partially vaporize, thickening the atmosphere
C) extend over the entire surface of the planet
D) completely disappear

Question

Quizplus · Accepted Answer

When the Martian axis tilt is large, the increased sunlight on the poles causes them to contract and partially vaporize. This process releases more water vapor and carbon dioxide into the atmosphere, effectively thickening it.

When the Martian Axis Tilt Is Large, the Martian Poles