https://external-preview.redd.it/1bDGdOP0ti_XyOPYF3tnBDt_ie8dEyA4opGeBP4Zeug.jpg?auto=webp&s=b6ecdbecb544ced4c278dd1b8b7eca1c062763dc

TIL The summit of Mt. Everest is marine limestone, meaning the highest point on Earth was once ocean seafloor.

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