The idea of continental drift, as proposed by Wegener around 1915, had one major flaw, which was
A) the absence of a source for the forces and energy required to move the continents.
B) the lack of any evidence that Africa and the Americas had ever been joined.
C) the recent discovery of seafloor spreading, which contradicted the theory.
D) the measured rate of continental motions, which were far greater than predicted.

Question

Quizplus · Accepted Answer

Wegener's theory of continental drift lacked a plausible mechanism for the movement of continents, which led to skepticism among his contemporaries. He could not explain the forces strong enough to move such large masses of earth.

The Idea of Continental Drift, as Proposed by Wegener Around