The opening of the Panama Canal affected transportation because now, sailors didn't have to sail ALL the way around South America.
They form when wind blows over the surface of the ocean. Wind energy is transferred to the sea surface. Then, the energy is carried through the water by the waves. This gives waves the energy to erode the shore.
The correct answer is C: the Mackenzie River!
Answer:
You can live in igloos because it gives protection from the cold and some people live in them
