Alfred Wegener discovered Pangea and the theory that over time they moved apart using tectonic plates. They had plates holding each part of the earth so as they move it pulls the land above apart. I hope this helps.
Planting trees in africa could help reduce severity of climate change.
I think it’s A) United States and Canada. If you look at the map closely on satellite it’ll show that the Rocky Mountains would cross the US Border onto Canada.
