NEET BIOLOGY

Detailed explanation-1: -Since the 1990s, studies have identified toxic pollutants including PCBs, DDT and chlordane in and around the Great Lakes, as well as lead, copper, arsenic and others. Some of these chemicals continued to show up because they were persistent and took a long time to break down.

Detailed explanation-2: -Reuse by choosing reusable alternatives over plastic, like water bottles or reusable grocery bags. Spread the word by sharing this information with friends and family, and urging them to keep plastic pollution out of the Great Lakes too.

Detailed explanation-3: -The Great Lakes Water Quality Agreement is a commitment between the United States and Canada to restore and protect the waters of the Great Lakes. The Agreement provides a framework for identifying binational priorities and implementing actions that improve water quality.

Detailed explanation-4: -Point sources include municipal sewage treatment plant effluent and industrial effluent. These are sources of phosphorus that can be identified as a single source such as an effluent pipe going into a water body. Non-point sources are diffuse sources of pollution and include agriculture and urban storm water runoff.