When considering evidence of glaciation on the southern continents, why did Wegener reject the explanation that the entire planet had experienced a period of extreme cooling?
A) Because the glacial debris was localized to a few small mountain valleys
B) Because he knew the "glacial debris" was actually a misinterpreted landslide
C) Because geologic evidence supported the existence of tropical swamps in the Northern Hemisphere
D) Because the 16O/18O ratios in fossils supported an ice-free period
Correct Answer:
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