Asked by justin
What first caused people to consider that the continents were once one large landmass?
glacier evidence in warmer countries
continents looked like they fit together
studying the valleys of the ocean floor
similar fossils were found on many continents
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Answered by
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continents looked like they fit together
People first noticed the apparent "jigsaw" fit of coastlines (especially Africa and South America). Later evidence — matching fossils, glacial deposits in now-warm regions, and seafloor studies (mid‑ocean ridges and paleomagnetism) — provided the stronger proof and the mechanism (plate tectonics).
People first noticed the apparent "jigsaw" fit of coastlines (especially Africa and South America). Later evidence — matching fossils, glacial deposits in now-warm regions, and seafloor studies (mid‑ocean ridges and paleomagnetism) — provided the stronger proof and the mechanism (plate tectonics).
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