Final answer:
Lake Tanganyika and Lake Albert are two prominent lakes located in the Great Rift Valley and are essential to the livelihood of millions in Central Africa.
Step-by-step explanation:
Two lakes found in the Great Rift Valley are Lake Tanganyika and Lake Albert. Lake Tanganyika is significant for being the world's second deepest lake, reaching depths of 4,800 feet and running along the boundary between the Congo and Tanzania, extending more than 418 miles. Lake Albert is another one of the deep water lakes in the western section of the Great Rift Valley. Both lakes are integral to the Central African ecosystem and support millions of people with freshwater and fish.