Which type of evidence was NOT used by Alfred Wegener to support his continental drift hypothesis?
Most geologists rejected Alfred Wegener’s idea of continental drift because
What technology did scientists use in the mid-1900s to map the mid-ocean ridge?
In sea-floor spreading, molten material rises from the mantle and erupts
What did scientists in a submersible see when they observed the mid-ocean ridge?
The process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle is known as
Old oceanic crust is more dense than new oceanic crust because it is
Most geologists think that the movement of Earth’s plates is caused by
The geological theory that states that pieces of Earth’s lithosphere are in constant, slow motion is the theory of
Earth’s mantle is
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