There is no such thing. - You may mean a "crawl space" -this a space under the floors of many wood built homes to enable access to water and electric services. These crawl spaces are usually 2-4 feet high and are very common in north Amrican houses.
covering crawl space with plastic help cut down on humidity in the house?
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You can use poisons or traps.
Id crawl around your house, and stay away from french people.
crawl I crawl, you crawl, he crawls, we crawl, they crawl.
crawl I crawl, you crawl, he crawls, we crawl, they crawl.
Broken supply line or drain. Crawl underneath and see which.
You could break an appropriate window, open it and crawl in, or call a locksmith.
they are not. they are just nusances that do nothing but live in your house and crawl around and nestle in tiny spaces
The climb, they crawl, they can get into most any nook or cranny in your house. They are pests and ugly.
Its usually used to limit the amount of insects and water damage that may happen to your house. It is a somewhat simple job that most house owners are able to complete. For instructions go here: http://www.ehow.com/way_5426366_do-waterproof-crawl-space.html
In a word, Convection, Although it may not feel like it the air that is rising from the crawl space is probably warm air compared to what is surrounding it and just feels cold inside the house.