It is connected to the Atlantic ocean through the Mediterranean Sea, Aegean Sea, and many straits. 90% of the sea has no oxygen, and the water has salt in it. During the last ice age, the Black Sea was a freshwater lake.
The Black Sea sits on continental plates which have subsided. It is a geologic basin, and therefore is a genuine inland sea. Its maximum depth is about 2000 metres. The Black Sea is the world’s largest basin where the deep waters do not mix with the upper layers of water that receive oxygen from the atmosphere. As a result, over 90% of the deeper Black Sea volume is anoxic water. The upper layers are generally cooler, less dense and less salty than the deeper waters, as they are fed by large river systems, whereas the deep waters come from the warm, salty waters of the Mediterranean. A part of Ukraine divids this sea Note: The Black Sea isn't really black The Black sea is in the other way of the Mediterranean sea
Anchovies are very delicious fish.