Lake Tanganyika Trivia Questions
How much do you really know about Lake Tanganyika? Below are 16 true or false statements. Click each one to reveal the answer and explanation.
1.Lake Tanganyika is shared by four countries: Burundi, Democratic Republic of Congo, Tanzania, and Zambia.
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Easy
Lake Tanganyika is shared by four countries: Burundi, Democratic Republic of Congo, Tanzania, and Zambia.
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Lake Tanganyika's shoreline borders Burundi, the Democratic Republic of the Congo, Tanzania, and Zambia, making it a key geopolitical and economic resource in the region.
2.Lake Tanganyika is the only lake in Africa that contains crocodiles and hippopotamuses.
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Easy
Lake Tanganyika is the only lake in Africa that contains crocodiles and hippopotamuses.
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Many African lakes have crocodiles and hippos, including Lake Victoria and Lake Malawi. Tanganyika is not unique in this respect.
3.Lake Tanganyika is home to over 250 species of cichlid fish, most of which are found nowhere else on Earth.
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Easy
Lake Tanganyika is home to over 250 species of cichlid fish, most of which are found nowhere else on Earth.
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Lake Tanganyika is an evolutionary hotspot for cichlids, with around 250 endemic species, many still being discovered.
4.Lake Tanganyika is a saltwater lake.
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Easy
Lake Tanganyika is a saltwater lake.
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Lake Tanganyika is a freshwater lake, although it has a high mineral content. It is not saline like the Dead Sea or the Great Salt Lake.
5.Lake Tanganyika is the largest lake in Africa by surface area.
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Easy
Lake Tanganyika is the largest lake in Africa by surface area.
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Lake Victoria is the largest African lake by surface area (68,800 km²). Lake Tanganyika is longer and deeper but smaller in area.
6.The lake's water is so clear that visibility can exceed 20 meters in some areas.
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Medium
The lake's water is so clear that visibility can exceed 20 meters in some areas.
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Low nutrient levels and minimal sediment runoff give Lake Tanganyika exceptional clarity, often over 20 meters visibility.
7.Lake Tanganyika is the world's deepest lake, reaching over 1,400 meters at its deepest point.
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Medium
Lake Tanganyika is the world's deepest lake, reaching over 1,400 meters at its deepest point.
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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.
8.Lake Tanganyika holds about 18% of the world's unfrozen freshwater, second only to Lake Baikal.
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Medium
Lake Tanganyika holds about 18% of the world's unfrozen freshwater, second only to Lake Baikal.
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Its immense volume—roughly 18,900 cubic kilometers—makes it Earth's second-largest freshwater lake by volume, after Lake Baikal.
9.Lake Tanganyika is home to more than 250 species of cichlid fish that are found nowhere else.
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Medium
Lake Tanganyika is home to more than 250 species of cichlid fish that are found nowhere else.
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Lake Tanganyika has around 250 cichlid species, but a few are not endemic—they also live in connecting rivers. So the number of cichlid fish found nowhere else is slightly less than 250, not more.
10.Lake Tanganyika was formed by a volcanic eruption.
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Medium
Lake Tanganyika was formed by a volcanic eruption.
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Lake Tanganyika is a rift lake, formed by tectonic plate divergence in the East African Rift, not by volcanic activity.
11.Lake Tanganyika reaches a depth of 1,470 meters.
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Medium
Lake Tanganyika reaches a depth of 1,470 meters.
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Lake Tanganyika has a maximum depth of 1,470 meters, making it the second deepest lake in the world after Lake Baikal.
12.Lake Tanganyika is located entirely within Tanzania.
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Medium
Lake Tanganyika is located entirely within Tanzania.
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Lake Tanganyika borders four countries: Tanzania, Democratic Republic of the Congo, Burundi, and Zambia.
13.Lake Tanganyika is over 670 kilometers long.
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Medium
Lake Tanganyika is over 670 kilometers long.
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Lake Tanganyika is the longest freshwater lake by length, stretching approximately 677 km. It extends through four African countries.
14.Lake Tanganyika was formed by volcanic activity about 10 million years ago.
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Hard
Lake Tanganyika was formed by volcanic activity about 10 million years ago.
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It's a rift lake, formed by tectonic plate divergence in the East African Rift, not volcanism. Volcanic lakes are typically smaller.
15.The temperature in Lake Tanganyika rarely drops below 23°C, even at Lake Tanganyika's deepest depths.
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Hard
The temperature in Lake Tanganyika rarely drops below 23°C, even at Lake Tanganyika's deepest depths.
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Lake Tanganyika is a tropical meromictic lake; its surface temperature typically stays above 23°C, and its deep waters, isolated from cold mixing, remain around 23-24°C year-round. Thus, the temperature rarely drops below 23°C anywhere in the lake.
16.Lake Tanganyika is one of the oldest lakes in the world, estimated to be 9 to 12 million years old.
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Hard
Lake Tanganyika is one of the oldest lakes in the world, estimated to be 9 to 12 million years old.
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Lake Tanganyika is an ancient rift lake, with an estimated age of 9–12 million years, making it one of the oldest on Earth.
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