Here they are:
1. Fit of the Continents: Wegener noticed that the coastlines of Africa and South America seemed to fit together like puzzle pieces. This was especially true when looking at the continental shelves, which extend underwater.
2. Fossil Evidence: Similar fossils of plants and animals were found on continents now separated by vast oceans. This suggested that these landmasses were once connected.
3. Geological Evidence: Wegener found evidence of similar rock formations and mountain ranges on continents that are now far apart. He argued that these formations formed at the same time and were later separated by continental drift.
4. Climate Evidence: Glacial deposits and evidence of tropical climates were found in places that are currently too far apart to have experienced these conditions simultaneously. This suggested that the continents were once located in different positions.
It's important to note that while Wegener's evidence was compelling, his theory was initially rejected by the scientific community. His ideas about the mechanism of continental drift were incomplete, and he lacked the evidence for the driving forces behind the movement. It wasn't until the development of the theory of plate tectonics, with its explanations of seafloor spreading and subduction, that Wegener's ideas were finally accepted.
