All Humans Are 99.9% Genetically Identical and 98.4% of human genes are the same as the genes of a chimpanzee.
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In zero gravity, a candle's flame is round and blue.
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One gallon of used motor oil can ruin approximately one million gallons of fresh water!
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Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
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One cubic foot of gold weighs more than 1,200 pounds!
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One barrel of petroleum holds 42 gallons.
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Each day, up to 150 species of life become extinct.
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