Wegener's theory of continental drift was formulated at a time when evidence for it was lacking. what new evidence was harry hess able to add in support of this theory?

The theory of continental drift by Alfred Wegener states that all land masses were originally united in a single supercontinent known as Pangaea (250 million years ago). He shows evidences like continental fit, similarity of rock sequences, glacial till and striations, fossils (cynogathus-land reptile, lystrosaurus-land reptile, mesosaraus-freshwater reptile, glossopteris-fern plant) to support his theory but what was lacking is that it lacked a mechanism to explain HOW the continents moved apart. But Harry Hess, a geologist and Navy submarine commander during WWII brought up a new evidence to add in support of Wegener’s theory: the idea of seafloor spreading and magnetic reversals.

C.about 10% i think

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