But science was not ready to consider the theory of continental drift in 1915.

His work provided support for the theory of continental drift.

The theory of continental drift was not accepted for many years.

He used statistical methods to support the theory of continental drift.

Almost overnight the continental drift theory became a new scientific fact.

The work on the ship helped to confirm the continental drift theory.

The drift theory assumes that the organic material did not form in or near its present location.

These plant fossils are now known to prove the theory of continental drift.

If current theories of continental drift are correct, this land was Antarctica.

Alfred Wegener proposed the theory of continental drift in 1912.