56
Lesson 56 of 84 · Geography
The Himalayan Mountains
The Sahara Desert stretches across North Africa, covering about 3.6 million square miles. Peoples like the Tuareg have lived in and around it for thousands of years.
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?