How does a landfill work? Does it compact and compact or does it just keep piling up until its eventually taller than the buildings around it? Is it ever at risk of bursting or damaging anything around it?
In: Earth Science
Normally they did a huge hole in the ground and then fill it up, hence the name landfill. However once it has been filled and covered over some of the material will continue to decay releasing methane gas into the atmosphere and sometimes creating gaps and empty pockets in the landfill which may collapse due to the weight of material above it. This normally makes landfills unsuitable for being built on and they are normally used as parks.
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