alleryStart learning →Who assembled the case for drifting continents in 1920, without a mechanism to explain it?
AGrove Gilbert
BAlfred Wegener
CPercival Lowell
DGeorge Hale
Answer & Solution
Correct answer: B. Alfred Wegener
1. The matching coastlines of Africa and South America had been noticed for centuries.
2. Alfred Wegener, a German meteorologist and astronomer, gathered the fossil and shape evidence.
3. He named the old supercontinent Pangaea but could not say how continents moved.
4. Without a mechanism most scientists rejected the idea until plate tectonics supplied one.
_Source: OpenStax Astronomy (CC BY 4.0), section 8.2 Earth’s Crust_
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