what is black about the black sea?

Answer 1

the depth of it, it is extremely deep and has an underwater toxic stew that is known to be deadly - - sounds extreme but this is a scientific fact and I read it, it is also why it is so black to look into it's deep dark waters

Answer 2

The Black Sea was once part of a larger body that included the Caspian and Aral seas. In the Tertiary period, it was separated from the Caspian Sea and was linked to the Mediterranean Sea. Evidence suggests that more recently, about 7,600 years ago, at the end of a long dry period, it was flooded when the Mediterranean, having again become separate, broke through at the Bosporus, an event that may have scattered farmers from its shores into Europe and Asia. Some scientists have hypothesized that this event happened catastrophically and is the source of the biblical story of the Deluge.

The Pontus Euxinus [hospitable sea] of the ancients, the Black Sea was navigated and its shores colonized by the Greeks (8th—6th cent. ) and later by the Romans (3d—1st cent. ). Its importance increased with the founding of Constantinople ( 330). In the 13th cent. the Genoese established colonies on the Black Sea, and from the 15th to the 18th cent. it was a Turkish "lake." The rise of Russia led to protracted dispute with the Ottoman Empire over control and use of the Bosporus and Dardanelles. In 1783, Russia annexed the Tatar Khanate of Crimea, which blocked its access to the sea, but the Treaty of Paris, which ended the Crimean War of 1856, frustrated Russia's expansionist ambitions, and Russia and its successor, the Soviet Union, retained limited influence in the region. In 1992, after the breakup of the Soviet Union, the Black Sea Economic Cooperation was established by nations surrounding the sea; it became a formal international organization in 1998. The six nations bordering the sea established the Black Sea Naval Cooperation Task Group in 2001 to promote cooperation on naval and environmental issues.

Answer 3

the name

Answer 4

The blackiness about the black sea is that, u will not find any living organism in there. The reason is, the density of water in there is extremely high ( Due to all the disolvants mixed with it).
So that whatever u throw in to there it will never be drowned, but it will float. Strange, is not it. But it is true. And also due to all these high disolvants in the water, the water has turned really salty in there.

Answer 5

THE black sea is located in Russia.

Answer 6

Most of the other answer are good.

Here is my observation on the subject.

Compared to other bodies of water, back sea density of water is higher.

I was told that it is the easiest place to learn swimming.

In places it has distinct back tint or colouration, most other bodies of water away from shore line would be tercois blue(people refer to deep blue sea eyes).

It has more salt but not as much as Salt Lake.

Answer 7

The water is not black. It has a black tinge because of the black rocks on the bottom. There has also been black fish found near the bottom of the lake.

Answer 8

mass area of sea looks more like blue all the time ... but that part of the sea is deep and small ,it looks more darker because of the depth ,, thats why its called black sea

Answer 9

Just as what is about the dead sea or what is red about the red sea

Answer 10

The Black Sea is the world’s largest meromictic basin, with 90% of its volume occupied by anoxic waters. The current hydrochemical configuration is primarily controlled by basin topography and fluvial inputs, which result in a strongly stratified vertical structure and a positive water balance. The upper layers are generally cooler, less dense and less salty that the deeper waters, as they are fed by large fluvial systems, whereas the deep waters originate from the warm, salty waters of the Mediterranean. This influx of dense water from Mediterranean is balanced by an outflow of fresher Black Sea surface-water into the Marmara Sea, maintaining the stratification and salinity levels.
Bay of Sudak.
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Bay of Sudak.

The surface water has an average salinity of 18-18.5 ppt and contains oxygen and other nutrients required to sustain biotic activity. These waters circulate in a basin-wide anti-cyclonic shelfbreak gyre known as the Rim Current which transports water round the perimeter of the Black Sea. Within this feature, two smaller cyclonic gyres operate, occupying the eastern and western sectors of the basin. Outside the Rim Current, numerous quasi-permanent coastal eddies are formed due to upwelling around the coastal apron and ‘wind curl’ mechanisms. The intra-annual strength of these features is controlled by seasonal atmospheric and fluvial variations. Sea Surface Temperature of the surface waters varies seasonally from 8°C to 30°C.

Directly beneath the surface waters the Cold Intermediate Layer (CIL) is found. This layer is composed of cool, salty surface waters, which are the result of localised atmospheric cooling and decreased fluvial input during the winter months. The production of this water is focussed in the centre of the major gyres and on the NW shelf and as the water is not dense enough to penetrate the deep waters, isopycnal advection occurs, dispersing the water across the entire basin. The base of the CIL is marked by a major thermocline, halocline and pycnocline at ~100-200m and this density disparity is the major cause of deep-water isolation.

Below the pycnocline, salinity increases to 22-22.5 ppt and temperatures rise to ~8.5°C. The hydrochemical environment shifts from oxygenated to anoxic, as bacterial decomposition of sunken biomass utilises all of the free oxygen. Certain species of extremophile bacteria are capable of using sulfate (SO42−) in the oxidation of organic material, which leads to the creation of hydrogen sulphide (H2S). This reacts with seawater to produce sulfuric acid (H2SO4). This enables the precipitation of sulfides such as iron-sulphides like pyrite, greigite and iron-monosulphide as well as the dissolution of carbonate matter such as Calcium carbonate (CaCO3) found in shells. Organic matter, including anthropogenic artefacts such as boat hulls, are well preserved. During periods of high surface productivity, short-lived algal blooms cause organic rich layer known as sapropels to occur.

Hope this answers your question.