What is an example of a technology that helps support the idea of continental drift, thus leading to change in scientific knowledge

Question

anonymous · Answer

well today a submarine and some samples of the rock can prove that new rock is emerging while old rock is being subducted as it is moved away from the divergent boundary

anonymous · Answer

so submarines for visual information of new land emerging and pushing old land out and radioactive dating to prove that the farther you go out the older the rocks