Neanderthals inhabited western Eurasia from about 400,000 years ago until their extinction about 40,000 years ago and have often been caricatured as the archetypal "cavemen". Questions about their ...
Climate Compass on MSN
How Caves Form Hidden Worlds Underground - Explained By Geologists
The Chemistry Behind Cave Formation Cave formation starts with a simple chemical reaction between water and carbon dioxide in the atmosphere, creating carbonic acid. This weak acid forms when ...
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