Sink holes in Florida

Sink holes are very common in Florida which i never know until today student news. Some people may be living on top of a sink hole right now and there life may be at risk and they don't know  There is many kinds of karst  land forms, which include caves, disappearing streams, springs, and underground drainage systems, all of which occur in Florida. Karst is a generic term which refers to the characteristic terrain produced by erosion processes associated with the chemical weathering and dissolution of limestone or dolomite, the two most common carbonate rocks in Florida. Dissolution of carbonate rocks begins when they are exposed to acidic water. Most rainwater is slightly acidic and usually becomes more acidic as it moves through decaying plant debris. And many sink holes are just filled back up and people build a house right over it without telling the people that end up living there that there life is at risk. Wow terrible