Which of the following best explains why Mars' and Venus' surface temperatures vary, despite both planets having atmospheres that contain mostly carbon dioxide?(1 point)
Responses
Venus has a thick atmosphere which blocks heat from the surface.
Venus has a thick atmosphere which blocks heat from the surface.
Mars has a surface of red rocks and sand which reflect heat.
Mars has a surface of red rocks and sand which reflect heat.
Mars has a thin atmosphere that cannot hold much heat.
Mars has a thin atmosphere that cannot hold much heat.
Venus has a surface of high mountains which absorb heat.
The correct answer is:
Mars has a thin atmosphere that cannot hold much heat.
Venus has a thick atmosphere which traps heat and creates a runaway greenhouse effect, leading to extremely high temperatures. On the other hand, Mars has a very thin atmosphere that is not able to trap much heat, resulting in much colder temperatures on its surface.