b) Lake Superior
Lake Superior is the largest freshwater lake in the U.S. by surface area. Spanning parts of Minnesota, Wisconsin, and Michigan in the United States, and Ontario in Canada, Lake Superior is the largest of the Great Lakes of North America. It holds about 10% of the world’s surface fresh water and is known for its cold temperatures, deep waters, and powerful storms. The lake’s size and the rugged beauty of its shoreline make it a popular destination for outdoor activities such as boating, fishing, and hiking.