The theory of continental drift is supported by

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All of the choices support the theory of continental drift. The similarity of fossils in Africa and South America provides evidence that these two continents were once connected, but later moved apart due to the process of continental drift. Paleomagnetic surveys have shown that the magnetic orientation in certain rocks varies depending on their location, which supports the idea that the continents have shifted over time. The mid-ocean ridges are evidence of the sea floor spreading, which is a key component of the theory of plate tectonics. Finally, the fit of the continental shelves of South America and Africa provides additional evidence that these two landmasses were once connected.

The Theory of Continental Drift Is Supported by