In moderate and cold climates, a tree gains one ring every year, which allows us to estimate its age. Where else we can estimate age in similar fashion?

on the beach, layers of sand and grit
at the bottom of the lake, sedimentation
in the craters, pyroclastic rocks
in the glaciers, layers of clay and sand
At the bottom of some lakes the sediments stay very well preserved. Lamina lucida and lamina densa are created during the one year cycle. This fact can be used as lake's age estimation.
Ninjai
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Very interesting!
reach: rather globalgeographygeologylakes

Answers by country

on the beach, layers of sand and grit
at the bottom of the lake, sedimentation
in the craters, pyroclastic rocks
in the glaciers, layers of clay and sand
answers
flagItaly
3%
84%
5%
5%
58
flagAustria
0%
78%
10%
10%
19
flagThailand
0%
71%
4%
23%
21
flagRepublic of Ireland
0%
66%
3%
26%
30
flagGreece
0%
63%
13%
22%
36
flagthe Netherlands
3%
62%
6%
27%
29
flagAustralia
6%
61%
2%
25%
44
flagGermany
1%
57%
15%
20%
77
flagthe United States
9%
54%
13%
20%
358
flagIsrael
13%
53%
20%
13%
15
flagPoland
5%
50%
17%
24%
14128
flagthe United Kingdom
4%
45%
14%
33%
175
flagIndia
7%
44%
25%
19%
113
flagthe Philippines
25%
40%
25%
10%
20
flagCanada
15%
38%
19%
26%
26
flagPakistan
50%
37%
6%
6%
16
flagRussia
6%
36%
32%
20%
150
flagBelarus
0%
34%
44%
13%
29
flagUkraine
8%
28%
33%
27%
291
flagBulgaria
0%
28%
21%
42%
14