Even though 95% of the Martian atmosphere is composed of carbon dioxide, the greenhouse effect on Mars today is very weak because its atmosphere is very
A) dusty
B) thin
C) dry
D) cold

Question

Quizplus · Accepted Answer

The best choice is B, thin. This is because Mars has a very thin atmosphere compared to Earth, which means there are fewer gases to trap heat and create a greenhouse effect. The other choices could be factors that contribute to the weak greenhouse effect on Mars, but they are not the primary reason.

Even Though 95% of the Martian Atmosphere Is Composed of Carbon