The longest river in the world is the River Nile, clocking 6,853km in length. Its water resources are shared by 11 different countries, too.
It would take you approximately 18 months to walk all the way along The Great Wall of China. (It’s over 5,000 miles long).
Acacia trees in Africa communicate with each other. They emit gasses to alert other trees to produce the toxin tannin, which protects them from hungry animals.
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