The Amazon Basin is almost as big as the US
The Amazon Basin, Earth's largest river system, covers 7 million square kilometers, nearly matching the US, and is vital for global climate and biodiversity.
The Amazon Basin, draining the mighty Amazon River, spans an estimated 7 million square kilometers across nine South American countries. This makes it the world's largest river basin by area, nearly matching the size of the entire United States. Its immense scale represents about 40 percent of South America's land and supports Earth's most biodiverse ecosystem.
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