The ocean floor is a maximum of about 200 million years in age because
A) Earth is only 200 million years old.
B) the ocean floor is pushed up onto continental material during plate collisions.
C) the ocean floor subducts during plate collisions.
D) hot spots continuously destroy the ocean floor.
E) None of the above-the ocean floor is 3.96 billion years old.

Question

Quizplus · Accepted Answer

The ocean floor is constantly being created at mid-ocean ridges through seafloor spreading, but it is also being destroyed through subduction at convergent plate boundaries. This process limits the maximum age of oceanic crust to around 200 million years because any older crust has likely been subducted.

The Ocean Floor Is a Maximum of About 200 Million