Dettifoss is reputed to be the most powerful waterfall in Europe. Where is it?

in Iceland
in Norway
in Switzerland
in Germany
Dettifoss is situated on the Jökulsá á Fjöllum river, which flows from the Vatnajökull glacier and collects water from a large area in Northeast Iceland. The falls are 100 metres (330 ft) wide and have a drop of 45 metres (150 ft) down.
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in Iceland
in Norway
in Switzerland
in Germany
answers
flagItaly
85%
10%
0%
2%
77
flagIceland
81%
14%
3%
0%
27
flagGermany
63%
27%
6%
2%
690
flagPoland
59%
28%
9%
1%
22063
flagAustria
59%
25%
10%
1%
115
flagBelarus
59%
29%
8%
2%
47
flagSwitzerland
58%
29%
10%
0%
67
flagthe United Kingdom
55%
31%
9%
2%
347
flagGreece
55%
34%
8%
2%
49
flagRepublic of Ireland
53%
34%
7%
3%
52
flagthe United States
52%
26%
12%
4%
731
flagUnknown
48%
25%
18%
7%
27
flagSpain
46%
30%
20%
3%
30
flagthe Netherlands
44%
44%
8%
0%
49
flagAustralia
43%
45%
7%
1%
53
flagCanada
43%
32%
10%
10%
46
flagUkraine
42%
34%
15%
6%
435
flagRussia
42%
34%
16%
3%
226
flagIndia
41%
21%
23%
12%
123
flagKazakhstan
41%
32%
21%
0%
46