Flexi Says: Dead zones can be reversed by eliminating or reducing the factors that caused them. Cutting down on the use of chemical fertilizers is one way to prevent dead zones in bodies of water. Preserving wetlands is also important. Wetlands slow down and filter runoff before it reaches bodies of water. Wetlands also provide breeding grounds for many different species of organisms. Reducing sewage or thermal pollution that may be causing the dead zone is also important. In addition, plastic waste should be prevented from entering the water bodies.
