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Sink holes are surface subsidence structures that form due to the collapse of underground voids. These voids may form naturally (e.g. due to the dissolution of rocks such as limestone or gypsum by groundwater) or be man made (e.g. mine workings). The surface subsidence pit can vary greatly in depth and diameter from less than a metre wide and 1/2 a metre deep to tens of metres in diameter. They don't swallow people up, however it would be possible for a person to fall into one of these features. There have also been occurrences where they have formed under or close to buildings causing instability and even collapse and which have caused fatalities.
Some further explanation of the sink hole phenomenon along with pictures of sink holes and the damage they can cause can be seen by viewing the related links.
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FALSE
Is a volcano a geological hazard?
no its a geological disaster you waste man
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Sublimation is not a chemical reaction but a phase transition phenomenon; the reverse phenomenon is named deposition.
Is when liquid water slowly dries up and turns into water vapor?
This is called evaporation phenomenon.
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Ahkamz Razor....look up the film Contact for more info
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The worm Ouroboros swallows up his own tail.
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clean it up
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A theory is what many people working together have come up with to answer a question. A law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The speed of light is a law.
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This answer really is up to you to decide. There is no scientific evidence that suggests this is a real phenomenon, but there are people, and cultures of people, who believe it is possible.
What is a good website to look up rock information?
Any of the national geological surveys, for example the British Geological Survey.
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Yes it does everyday they have interourse then it swallows it right up!
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How does a hermit crab eat?
it picks the food up with its claws then puts it in its mouth and swallows
The Type of star the sun turns into when it swells up and swallows the earth?
Red Giant
What three divisions make up the geological timetable?
Precambrian Cambrian
How do you relate population to the other 5 geological themes?
you give up
