Examine the idea of Greek philosophers on the shape and size of the earth during the classical times.

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.

Match the letters with the correct terms

In saudi arabia, voting rights are limited to