When learning about light, we predicted that Venus should have a temperature of 250 K based on its albedo and distance from the Sun. Why is Venus's observed average surface temperature equal to 740 K, which is hot enough to melt lead?
A) Venus has slow, retrograde rotation, and its seasons are very long.
B) Venus has many active volcanoes that release heat into its atmosphere.
C) Venus has a very thin atmosphere, and more sunlight falls onto its surface.
D) Venus has a strong greenhouse effect.
E) Venus has a highly eccentric orbit and is sometimes much closer to the Sun than other times.

Question

Quizplus · Accepted Answer

Venus has a thick atmosphere composed mostly of carbon dioxide, which traps heat and creates a strong greenhouse effect. This causes the observed surface temperature to be much higher than what would be expected based solely on its distance from the Sun and albedo.

When Learning About Light, We Predicted That Venus Should Have