71
Lesson 71 of 84 · U.S. Regions
The Pacific Coast States
Mountains form when tectonic plates collide. Mount Everest in the Himalayas, at 29,032 feet, is the tallest mountain on Earth.
Key Facts
1
Earth has seven continents.
2
There are five major oceans.
3
Climate differs from weather.
Check Your Understanding
Question 1
1 of 2How many continents are there?