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#Repost///@insidehistory: Scientists have recently discovered an entire forest inside a 630 foot (192 meters) deep giant sinkhole in #China 😮As rain falls, it accumulates carbon dioxide and becomes more acidic, which eats through the bedrock. Eventually, it creates a chasm. And when the surface collapses into the chasm, it creates a sinkhole.The sinkhole contains a load of ancient trees and plants that could well include some species that have never been discovered before…