79
Lesson 79 of 84 · U.S. Regions
Regional Cultures and Traditions
Earthquakes occur when tectonic plates shift suddenly. The Ring of Fire around the Pacific Ocean is Earth's most earthquake-prone region.
Key Facts
1
Geography affects how people live.
2
Earth has seven continents.
3
There are five major oceans.
Check Your Understanding
Question 1
1 of 2Which is the largest ocean?