45
Lesson 45 of 84 · U.S. Regions
Regional Economies
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
Climate differs from weather.
2
Natural resources are limited.
3
Geography affects how people live.
Check Your Understanding
Question 1
1 of 2What does a physical map show?