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
3%
15%
3%
78%
32
flagLithuania
0%
21%
0%
78%
14
flagSpain
13%
13%
0%
73%
23
flagthe Netherlands
17%
2%
5%
71%
35
flagNorway
13%
8%
8%
69%
23
flagFrance
16%
4%
12%
68%
25
flagDenmark
10%
10%
10%
68%
19
flagGermany
10%
16%
6%
67%
146
flagBelgium
22%
5%
5%
66%
18
flagPoland
15%
13%
9%
60%
7723
flagRepublic of Ireland
5%
25%
10%
60%
20
flagAustria
20%
6%
13%
60%
15
flagUkraine
16%
16%
8%
58%
12
flagthe United Kingdom
20%
12%
9%
57%
265
flagAustralia
26%
15%
0%
57%
19
flagthe United States
22%
10%
13%
51%
297
flagUU
21%
21%
6%
50%
32
flagSweden
23%
7%
23%
46%
13
flagCanada
10%
26%
13%
40%
30
flagIndia
36%
8%
16%
36%
25

Gender

men59%
women59%
Black Sea
15%
16%
Red Sea
16%
13%
Yellow Sea
8%
10%
Sargasso Sea
59%
59%

Details

Author: Lynn Desmond
Illustration: NOAA Photo Library
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