Based on the apparent jigsaw-puzzle fit of some of the earth's largest landforms, especially africa and south america, scientists have proposed that about 200 million years ago the continents were once joined together in a supercontinent called
a. laurasia. b.gondwanaland. c.pangaea. d.cretaceous.

How did turkey change as a result of world war i?

According to jean-jaquees rousseau, individuals participating in a social contact agree to be ruled by

How does the supremacy clause of the u.s. constitution affect the states? o a. it requires each state to establish a supreme court. b. it declares that the federal government can take away state powers if necessary. o c. it allows state governments to overthrow the federal government if necessary. o d. it ensures that the u.s. constitution overrules each state constitution