Suppose Earth's atmosphere had no greenhouse gases. Then Earth's average surface temperature would be
A) -16°C, which is well below freezing.
B) 0°C, or about the freezing point for water.
C) 10°C or about 5°C cooler than it is now.
D) 15°C, or about the same as it is now.
E) 20°C, or about 5°C warmer than it is now.
Correct Answer:
Verified
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