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Lesson 4 of 84 · Geography
Rivers and Their Importance
Rivers carry water from high ground to the sea. The Nile, Amazon, Mississippi, and Yangtze support agriculture, transportation, and millions of people.
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?