One day in 1910, a young German meteorologist, Wegener, was lying on a hospital bed, his eyes turned to a map of the world on the wall, and he accidentally discovered that the western coastline of Africa and the eastern coastline of South America were so matched like a paper torn apart, you can put them together again, and a thought flashed in Wegener's mind: the two continents were originally a single whole piece, but only later did they rupture and drift apart, forming the way they are now
The traces left in the rock strata indicate that a long time ago, Arctic region today was once a very hot desert
the continental drift theory from different angles