Final answer:
The largest man-made lake in the world by surface area is Lake Volta in Ghana, created by the Akosombo Dam on the Volta River.
Step-by-step explanation:
The world's largest man-made lake is Lake Volta in Ghana. While Montana's Fort Peck Dam, mentioned in Figure 6.1.8, was an impressive feat that created one of the largest man-made lakes at the time of its completion in 1940, it has since been surpassed by other constructions. In Ghana, the building of the Akosombo Dam on the Volta River led to the creation of Lake Volta, which is the largest man-made lake in the world by surface area, covering 8,502 square kilometers (3,283 square miles). It serves multiple purposes, including electricity generation, fishery, and water transport, and has become a crucial component of Ghana's infrastructure.