Modern continents hold clues to their distant past. Evidence from fossils, glaciers, and complementary coastlines helps reveal how the plates once fit together. Fossils tell us when and where plants and animals once existed. Bye! Hope this helps:)
One of the key pieces of evidence supporting plate tectonic theory was the discovery that rocks on the seafloor record ancient reversals of the Earth’s magnetic field: as rocks are formed where plates are moving away from one another, they record the current direction of the Earth’s magnetic field, which flip-flops.
