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Sinkhole

en.wikipedia.org/wiki/Sinkhole

A sinkhole, also known as a cenote, sink, sink-hole, shakehole, swallet, swallow hole, or doline is a depression or hole in the ground ...

www.ask.com/youtube?q=How Are Sinkholes Formed?&v=tQvv8YFCGsY
Mar 2, 2013 ... Sinkholes are eating up buildings! You've seen 'em on the news, maybe even in your own neighborhoods... but what exactly causes them in ...
www.ask.com/youtube?q=How Are Sinkholes Formed?&v=ZqKuSKCO6o8
Jul 30, 2012 ... Massive Sinkhole Documentary - World's Most Terrifying Sinkhole - Documentary HD - Duration: 53:11. ... CAVE AND SINKHOLE FORMATION!

How Sinkholes Form - St. Johns River Water Management District

www.sjrwmd.com/watersupply/howsinkholesform.html

As the limestone dissolves, pores and cracks are enlarged and carry even more acidic water. Sinkholes are formed when the land surface above collapses or ...

Causes, Effects and Types of Sinkholes - Conserve Energy Future

www.conserve-energy-future.com/causes-effects-and-types-of-sinkholes.php

Humans are also responsible for the formation of sinkholes. Activities like drilling, mining, construction, broken water or drain pipes, improperly compacted soil ...

Why Sinkholes Open Up - National Geographic News

news.nationalgeographic.com/news/2013/08/130812-florida-sinkhole-disney-world-explainer-urban-science/

Aug 13, 2013 ... Get the science behind sinkholes and which areas are more prone to them. ... Sometimes in karst areas [irregular landscapes formed when ...

What Sinkholes Are and Why They Are Dangerous - ZME Science

www.zmescience.com/other/science-abc/science-abc-sinkholes/

Jan 9, 2016 ... The most impressive sinkholes form in thick layers of homogenous limestone. Their formation is facilitated by high groundwater flow, often ...

Sink Holes | Weather Wiz Kids

www.weatherwizkids.com/?page_id=1331

Natural sinkholes occur due to erosion or underground water. They start developing ... Humans are also responsible for the formation of sinkholes. Activities like ...

How Do Sinkholes Form? - Live Science

www.livescience.com/9932-sinkholes-form.html

Jun 1, 2010 ... Like all sinkholes, the one in Guatamala City formed when a swath of land collapsed, leaving behind a crater-like depression in the ground.

What Are Sinkholes? - Live Science

www.livescience.com/44123-what-are-sinkholes.html

Mar 15, 2014 ... Located in Green County, east of Bowling Green, Ky., this sinkhole formed about eight years ago; the owners of the farmland where it formed ...

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Who, What, Why: How are sinkholes formed? - BBC News - BBC.com

www.bbc.com

Mar 4, 2013 ... A Florida man whose bedroom was engulfed by a sinkhole as he slept is presumed dead. But how do these sinkholes form?

What are sinkholes, how do they form and why are we seeing so ...

www.independent.co.uk

Feb 18, 2014 ... The UK seems to be suffering from a plague of sinkholes. ... Naturally, it's the latter type that create headlines, but both varieties are formed by ...

How Sinkholes Work | HowStuffWorks

science.howstuffworks.com

Most sinkholes occur in areas where the bedrock is formed from soft minerals and rocks like salt, gypsum, limestone, dolomite or others belonging to the ...