Answer:
I would definitely do some research on the interent for the asnwer
These areas are named triple junctions and can be found in several places across the world today. The separated margins of the continents evolve to form passive margins. Hess' theory was that new seafloor is formed when magma is forced upward toward the surface at a mid-ocean ridge.
The Native Americans helped the French. The English were stealing the Native American's land and the Native American's felt that wasn't fair so they put their efforts and trust in the French. That is why it was called the French and Indian War because the French and the the Indians were allies and they fought together.
The radio spread news quicker across different regions in the US.
I believe the leader is Eugene Debs.