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How are limestone caves formed?
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Water can actually dissolve certain types of rock, eventually forming underground streams and caves.

Carbon dioxide in the air dissolves in rainwater to form a very weak acid, which can slowly dissolve soft limestone rock. Over thousands of years, water seeping into cracks in limestone rock dissolves so much that the cracks become holes.

Slowly the holes grow even larger and form caves. These may be many kilometers in length and very deep. Sometimes the roofs of huge caves collapse, formi read more...

Tags: water, rock, caves

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Discuss : How are limestone caves formed? ... on Forum


Category: Education

Date Added: 09 Dec '11


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