The sea-floor spreading center that led to the formation of the Atlantic Ocean accelerated dramatically between
A) 4.6 and 2 billion years ago.
B) 465 and 225 million years ago.
C) the end of the Pleistocene and today.
D) 135 and 65 million years ago.

Question

Quizplus · Accepted Answer

The Atlantic Ocean began to form during the breakup of the supercontinent Pangaea, which occurred during the Mesozoic Era, particularly between 135 and 65 million years ago, when sea-floor spreading rates increased significantly.

The Sea-Floor Spreading Center That Led to the Formation of the Atlantic