What's HIDDEN Inside The World's Most Mystifying Sea?

The Black Sea is one of the marginal seas of the Atlantic and the ocean’s 13th largest sea. It covers a surface area of 436,402 km2, and has a volume of 547,000 km3. During the post-glacial period Black Sea water levels were much lower than they are today. The water levels rose after the last glacial period. Other sources indicate that the rise in water level in this former freshwater lake resulted from the Black Sea deluge (the myth of Noah's flood), which took place around 5600 BC. It should also not be forgotten that the water layer below 150 m of this sea contains 92% hydrogen sulphide, which is a poisonous gas.
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