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).

Answers distribution

Caspian Sea
Lake Superior
Lake Victoria
Lake Baikal
answers
flagLithuania
10%
0%
0%
89%
19
flagUkraine
10%
0%
5%
84%
19
flagRussia
4%
4%
9%
77%
22
flagSpain
12%
2%
7%
75%
41
flagDenmark
13%
4%
17%
65%
23
flagBelgium
4%
9%
22%
63%
22
flagRepublic of Ireland
15%
6%
15%
62%
45
flagAustria
19%
7%
11%
61%
26
flagthe Netherlands
17%
4%
17%
60%
45
flagPoland
20%
6%
12%
59%
14812
flagthe United Kingdom
21%
6%
14%
57%
447
flagGermany
25%
3%
13%
57%
221
flagCanada
17%
12%
12%
57%
73
flagFrance
22%
8%
13%
55%
36
flagItaly
29%
8%
5%
55%
34
flagNorway
24%
2%
19%
53%
41
flagAustralia
31%
4%
13%
51%
45
flagthe United States
26%
9%
13%
48%
679
flagUU
23%
7%
23%
46%
26
flagIndia
27%
21%
16%
33%
118

Gender

men59%
women55%
Caspian Sea
19%
22%
Lake Superior
7%
7%
Lake Victoria
13%
13%
Lake Baikal
59%
55%

Language versions

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answers
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Which lake is the oldest in the world?
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