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%
17%
3%
75%
29
flagSpain
10%
15%
0%
75%
20
flagLithuania
0%
25%
0%
75%
12
flagDenmark
5%
11%
11%
72%
18
flagNorway
10%
10%
10%
68%
19
flagGermany
11%
17%
4%
67%
135
flagthe Netherlands
20%
3%
6%
65%
29
flagFrance
20%
0%
15%
65%
20
flagBelgium
23%
5%
5%
64%
17
flagRepublic of Ireland
5%
22%
11%
61%
18
flagPoland
15%
13%
9%
60%
7019
flagAustria
20%
6%
13%
60%
15
flagthe United Kingdom
21%
12%
9%
56%
224
flagAustralia
25%
18%
0%
56%
16
flagUkraine
18%
18%
9%
54%
11
flagthe United States
22%
10%
13%
51%
278
flagSweden
23%
7%
23%
46%
13
flagCanada
11%
23%
15%
38%
26
flagIndia
36%
8%
16%
36%
25

Gender

men60%
women59%
Black Sea
15%
16%
Red Sea
15%
13%
Yellow Sea
8%
10%
Sargasso Sea
60%
59%

Details

Author: Lynn Desmond
Illustration: NOAA Photo Library
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