ocean sink holes

A sinkhole, also known as a cenote, sink, sink-hole, swallet, swallow hole, or doline (the different terms for sinkholes are often used interchangeably), is a depression or hole in the ground caused by some form of collapse of the surface layer. Gigantic sinkholes are appearing every day around the drying Dead Sea, threatening lives and the local economy. Learn more about this disaster in pictures and videos here. Sinkholes terrify uson land, they damage everything in their paths and threaten the lives of locals. But out at sea, sinkholes, known as blue holes... See more ideas about sink, natural disasters,