Irish Sea
The Pacific Ocean and the Sea of Japan.
The Atlantic Ocean
Around Ethiopia are the Red Sea, the Indian Ocean and the Gulf of Eden
No, the center of gravity of a solid body may not always lie within the body. It depends on the distribution of mass within the body. If the mass is distributed symmetrically, then the center of gravity will be located within the body. However, if the mass distribution is asymmetrical, the center of gravity may lie outside of the body.
The red sea
no
atlantic
Amsterdam lies on the North Sea. It was actually designed as a dam city and the Amstel river runs through the city itself.
south side of Cuba. It doesn't lie outside of Cuba, but more like in a small bay.
The Kurile Islands lie in between the Pacific Ocean (on the east side of the archipelago) and the Sea of Okhotsk (on the west side).
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