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Venus is farther than Mercury but hotter at the surface. Why?

AIt has the most volcanoes
BIt spins faster than Mercury
CIt is mostly made of metal
DThick carbon dioxide traps heat
Answer & Solution
Correct answer: D. Thick carbon dioxide traps heat
Venus has a dense atmosphere rich in carbon dioxide, a greenhouse gas, which traps heat and keeps the surface above 400 degrees Celsius.
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