Answer:
here ya go
Explanation:
• The region that we know as California has been at an active plate boundary for the past 225 million years. As a result, plate tectonics has been the most important force shaping California's geologic history.
• Before about 225 million years ago, North America's western edge was much farther east than it is now.
• The area where Nevada and the eastern deserts of California are today was the west coast of North America. Most of what is now California was either part of a distant oceanic plate or did not exist.
• When Pangaea began to break up, the North American plate moved west. The continent's western edge became an active convergent plate boundary.
• A long period of subduction began, which was an important period of geologic "building" in California.