Without greenhouse gases, the Earth's surface temperature would be:
A. Unchanged.
B. Hotter in the summer and cooler in the winter.
C. Hotter in the winter and cooler in the summer.
D. 33 degrees Centigrade cooler.
E. 33 degrees Centigrade warmer.
Ans: D. 33 degrees Centigrade cooler.
Physics & Space Science
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