Causes Volcanoes
The earth has “plates” and when two plates hit each other, one goes under and becomes “molten” which means it gets so hot, the ground turns into liquid. The molten stuff finds a hole in the ground and comes out the top. All of the continents used to be just one big piece of land, but the land broke up and floated away and created the 7 continents we have now. This was called continental drift. If you look at South America, it looks like it could fit like a puzzle piece into Africa.