Which lake is the oldest in the world?
Caspian Sea
Lake Superior
Lake Victoria
Lake Baikal
Lake Baikal is the deepest and the oldest lake, at least 25 million years old. It was formed as an ancient rift valley. Due its age, size and isolation, it hosts about 1000 endemic species of plants and animals (which can be found nowhere else in the world).
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Answers by country
Caspian Sea
Lake Superior
Lake Victoria
Lake Baikal
answers

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105

51

66

55

741

22

99

22006

47

45

1013

72

21

42

341

35

297

25

20