Answer;
The geographic events during mesozoic Era;
-formation of the Rocky Mountains begins
-Innuitian Mountains formed
-shallow seas in the interior of North America at times
Step-by-step explanation;
-This Era is the second of Earth’s three major geologic eras of Phanerozoic time.
-Mesozoic Era began 252.2 million years ago, following the conclusion of the Paleozoic Era, and ended 66 million years ago, at the dawn of the Cenozoic Era.