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THE ANSWER
"Day 1 Tower Seattle WA Jan 17" — Photo by Adamajreynolds / Wikimedia Commons / CC BY-SA 4.0
The world's greatest liquid artery.
This massive waterway carries more volume than many others combined. It snakes through the largest tropical forest on Earth.
Explanation
Did you know?
At the height of the wet season, the river can expand to over 30 miles in width.
The 5 Clues
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“It is often claimed to be the longest, though the Nile fights that title.”
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“Its basin contains a staggering amount of the planet's biodiversity.”
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“No bridge has ever been built across its entire vast span.”
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“It discharges enough water to affect the salinity of the Atlantic Ocean.”
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“It originates high in the Andes before crossing the South American continent.”
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