Which sea was considered to be non-navigable?

Black Sea
Red Sea
Yellow Sea
Sargasso Sea
The Atlantic Ocean's Sargasso Sea was named after the Sar­gas­sum seaweed, which floats en masse on the surface there. Although it was formerly thought to cover the entirety of the Sargasso Sea, making nav­i­ga­tion im­pos­si­ble, it has since been found to occur only in drifts. The historic in­ci­dents of sailing ships being trapped there are now con­sid­ered due to the often calm winds of the horse lat­i­tudes.

Answers distribution

Black Sea
Red Sea
Yellow Sea
Sargasso Sea
answers
flagItaly
10%
12%
2%
75%
49
flagUkraine
11%
7%
7%
74%
27
flagthe Netherlands
14%
4%
4%
73%
41
flagSpain
10%
14%
3%
71%
28
flagGreece
9%
19%
0%
71%
21
flagDenmark
8%
12%
8%
70%
24
flagLithuania
5%
23%
0%
70%
17
flagBelgium
18%
9%
4%
68%
22
flagGermany
10%
16%
7%
65%
162
flagFrance
15%
9%
9%
62%
32
flagPoland
15%
13%
8%
61%
10489
flagNorway
16%
9%
12%
61%
31
flagAustralia
21%
17%
0%
60%
23
flagthe United Kingdom
18%
12%
10%
58%
346
flagRepublic of Ireland
15%
18%
9%
57%
33
flagthe United States
21%
10%
12%
54%
364
flagUnknown
22%
16%
12%
48%
339
flagCanada
9%
23%
11%
47%
42
flagSweden
23%
11%
23%
41%
17
flagIndia
33%
6%
20%
36%
30

Gender

men56%
women58%
Black Sea
17%
17%
Red Sea
16%
13%
Yellow Sea
9%
10%
Sargasso Sea
56%
58%

Details

Author: Lynn Desmond
Illustration: NOAA Photo Library
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