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)continents erode the ocean floor when they roll over them,and new floor has to continually be created.

Question

Quizplus · Accepted Answer

The ocean floor subducts during plate collisions, causing it to be recycled and continuously renewed, limiting its age to around 200 million years old. This process is part of plate tectonics, which also causes mountains to form and earthquakes to occur. The other answer choices are incorrect; Earth is much older than 200 million years, continents do not erode the ocean floor, and hot spots do not destroy the ocean floor but can create new islands and volcanic features on the surface.

The Ocean Floor Is a Maximum of About 200 Million