The oldest oceanic crust on the seafloor is approximately no older than ________ years old.
A) 4.3 billion
B) 200 million
C) 10 million
D) 100 million
E) 1 billion

Question

Quizplus · Accepted Answer

The oldest oceanic crust on the seafloor is approximately 200 million years old. This is due to the process of seafloor spreading, where new crust is constantly being formed at mid-ocean ridges and pushed away from the ridge as new crust is formed. Therefore, the oldest crust is found farthest away from the mid-ocean ridges, and currently, the oldest known oceanic crust is approximately 200 million years old.

The Oldest Oceanic Crust on the Seafloor Is Approximately No