Earth
How Caves Form: Acid, Lava, Waves and Ice
A cave passage may grow by no more than a millimeter a year, and a foot-long stalactite can hold thousands of years of dripping water. Here is how the underground gets hollowed out.
Space, Earth and the natural world, explained.
A cave passage may grow by no more than a millimeter a year, and a foot-long stalactite can hold thousands of years of dripping water. Here is how the underground gets hollowed out.
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