@dgtyzed888: Everest Was Once Underwater! Mount Everest rises nearly 9 km above sea level—but parts of its summit are made of marine limestone, formed from sediments deposited in an ancient ocean millions of years ago. 🌊➡️🏔️ #MountEverest #EarthScience #GeologyFacts #AmazingFacts #Geology #NatureFacts #DIGINOTE #DidYouKnow