Bank of America. Theyâre among the 5 largest credit card companies on this list. 1  Rewards are a mixed bag. 2  Some of their cards use WorldPoints and as you can read about here, theyâre redemption value can be low.
All of that is being dumped into the Gulf of Mexico! The dead zone in the Gulf of Mexico has grown bigger over the years and is a dramatic case of what can happen. Unfortunately, according to many scientists, dead zones are becoming more common in the coastal waters of the United States.
The largest underground lake in the US is under Tennessee, discovered by a 13 yr old boy. Deep inside a mountain near Sweetwater in East Tennessee is a remarkable body of water known as The Lost Sea. Listed by the Guinness Book of World Records as Americaâs largest underground lake, the Lost Sea is part of an extensive and historic cave system called Craighead Caverns.