Since the early Mesozoic, the ________ has been passive tectonically.
A)western margin of North America
B)western margin of South America
C)southern margin of Eurasia
D)eastern margin of North America

Question

Quizplus · Accepted Answer

The statement mentions "the early Mesozoic," which refers to the time period from about 252 to 66 million years ago. During this time, the eastern margin of North America was indeed passive tectonically, meaning there was no significant geologic activity such as mountain building or volcanic eruptions. The other choices, western margin of North America, western margin of South America, and southern margin of Eurasia, all experienced significant tectonic activity during this time period.

Since the Early Mesozoic, the ________ Has Been Passive Tectonically