Which of the Following Properly Describes the Formation of Continental

question 4

Multiple Choice

Which of the following properly describes the formation of continental crust?

• A) All continental crust was formed millions of years ago. There is no active continental crust being formed.
• B) The formation of continental crust is independent of the formation of oceanic crust, involving only volcanism over the land masses.
• C) The formation of continental crust involves the entire sequence of seafloor spreading, subduction, remelting of oceanic crust, and subsequent rise of the remelted material.
• D) New continental crust is formed essentially in the same many as oceanic crust - from upwelling at mid-continental ridges.

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