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why are boogers green
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The Science Behind Why Are Boogers Green
That moment of discovery—when you pull out a snotty tissue and stare at the unmistakable greenish hue—is one humanity has likely shared for millennia. The...
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That moment of discovery—when you pull out a snotty tissue and stare at the unmistakable greenish hue—is one humanity has likely shared for millennia. The...