CONTINENTAL DRIFT 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.
(Alfred Wegener; proposed; the theory of continental drift; T:first) (continental drift; states; that parts of the Earth's crust slowly drift atop a liquid core)
Alfred Wegener continental drift
proposed states
the theory of continental drift T:first
that parts of the Earth's crust slowly drift atop a liquid core