Using complete sentences, name the four major rivers in Canada and provide a characteristic of each. (PLEASE make it in the simplest form possible)

In 1915 the german geologist and meteorologist alfred wegener first proposed the theory of continental drift, which states that parts of the earth's crust slowly drift atop a liquid core. the fossil record supports and gives credibility to the theories of continental drift and plate tectonics.

Ineed asap i will give 30 pointsps: the last word says splits

What type of government does costa rica have?