Question 1

True or false: Lake Tanganyika is the only lake in Africa that contains crocodiles and hippopotamuses.

Accepted Answer

False. Many African lakes have crocodiles and hippos, including Lake Victoria and Lake Malawi. Tanganyika is not unique in this respect.

Question 2

True or false: The lake is home to over 250 species of cichlid fish, most of which are found nowhere else on Earth.

Accepted Answer

True. Lake Tanganyika is an evolutionary hotspot for cichlids, with around 250 endemic species, many still being discovered.

Question 3

True or false: The lake is shared by four countries: Burundi, Democratic Republic of Congo, Tanzania, and Zambia.

Accepted Answer

True. Yes, its shoreline touches all four nations, making it a vital geopolitical and economic resource in the region.

Question 4

True or false: Lake Tanganyika is the world's deepest lake, reaching over 1,400 meters at its deepest point.

Accepted Answer

False. It is the second deepest, after Lake Baikal. Lake Tanganyika's maximum depth is about 1,470 meters, but Baikal is over 1,600 meters deep.

Question 5

True or false: Lake Tanganyika holds about 18% of the world's unfrozen freshwater, second only to Lake Baikal.

Accepted Answer

True. Its immense volume—roughly 18,900 cubic kilometers—makes it Earth's second-largest freshwater lake by volume, after Lake Baikal.

Question 6

True or false: The lake's water is so clear that visibility can exceed 20 meters in some areas.

Accepted Answer

True. Low nutrient levels and minimal sediment runoff give Lake Tanganyika exceptional clarity, often over 20 meters visibility.

Question 7

True or false: Lake Tanganyika was formed by volcanic activity about 10 million years ago.

Accepted Answer

False. It's a rift lake, formed by tectonic plate divergence in the East African Rift, not volcanism. Volcanic lakes are typically smaller.

Question 8

True or false: Lake Tanganyika has a surface temperature that rarely drops below 23°C, even at its deepest depths.

Accepted Answer

False. While the surface is warm (23-30°C), the deep waters are permanently cold, around 3-4°C, due to stable thermal stratification.

Lake Tanganyika Trivia Questions