What distinguishes a SEA from LAKE
Sometimes it happens that we colloquially confuse “sea” and “lake”, meanwhile you can find a number of fundamental differences.
Sea – into the land or isolated shores of the mainland, the rapids or the Islands of the ocean. Sea there are internal (inland), marginal, and inter-island imaterialise.
Internal – this is the sea, located on the land surface. As a rule, they communicate with the ocean by one or several Straits. These are the Black, Azov, Baltic sea. Marginal seas, unlike the mainland, adjacent to the mainland or separated from the ocean by Islands, for example, the Chukchi and the Barents sea. Imaterialise sea located between the continents: Red and Mediterranean seas. Inter-island sea are usually located between the major Islands. This is the Java sea. It happens that the water basin is completely isolated from the World ocean, respectively, that lake, but it is called the sea because of the large size (Caspian sea).
Kilogram of seawater contains 35 grams of various salts: 27.2 grams of sodium chloride, 3.8 grams of magnesium chloride, 1.7 grams of magnesium sulfate and a little less grams of calcium sulfate.
Edible salt is produced by evaporation of sea water. The first precipitates salt because its concentration in the solution the biggest. Today the sea is extracted from only the fourth part of the whole salt. The rest is obtained from salt mines, which are predominantly located on the shores of ancient seas.
The lake – lakes of natural origin in the recesses of the land. Land surface lakes are distributed unevenly: more in the North than in the South. Lakes differ from the seas, first of all, a smaller size.
There are several types of lakes: tectonic, salt, volcanic, artificial. The occurrence of tectonic lakes are due to the faults of tectonic plates. An example of such a lake may be the lake Baikal, which, moreover, is the deepest in the world. Subspecies are tectonic lakes relict. These are lakes which the basin was previously filled with salty sea water, but under the influence of precipitation this water is freshwater (lake Ladoga).
Also the lakes are sewage and closed. Sewage lakes are inland from the fact that from them flow rivers. In endorheic lakes of the percentage of dissolved salt more. Call this salty lake, in which the percent of salt comes to 47, and brackish – to 24.7. Mineral salts contain more than 47% salts. Dead sea called the salt lake on Earth.
Volcanic lakes represent a volcano crater filled with water. For example, lake Crater belong to this type, and it was formed 6 thousand years ago. There are lakes created by glaciers: the lake district in England. In addition, lakes may be formed under the ground in areas of salt deposits.
Funds are also artificial lakes that serve hydroelectric power or designed to provide living conditions to the people.
Philippine sea is the largest and the deepest in the world.
The Sargasso sea after the opening of its Columbus was named so because its surface is special type of algae, air bubbles which reminded the Portuguese grape sagra.
Adriatic was named after Adria, which is located 22 kilometers from the shore. It happened because in the 6th century BC the city was located on the coast, but then under the influence of natural conditions of the sea began to recede.
In South Korea, once a year you can feel like Moses, leading the Jewish people, and to see how the parted sea. Aisle width is 40 meters and the length – 2 km.
In Australia there is a lake, which every year covers a whole Park. This can occur due to rise of water due to melting snow.
In Indonesia, on top of a volcano, there are three lakes that change color due to the volcanic gases. These lakes can be turquoise, red, green, and black colors.
On the island of Java is unusual hot lake. Gases that rise from the lake surface and form bubbles with a diameter of 3 meters.
In lake Baikal 70% of the fauna is absolutely unique, i.e. 70% of the inhabitants of serene found nowhere else.
The first difference of the sea from the lake is the size: usually green, but there are these lakes, e.g. lake Baikal, which is comparable in size to the sea.
In any sea contains dissolved salt from the lake, whose waters can be salt, brackish and freshwater.
The origin of the sea is always natural, the lake may be artificial.
The lake is always limited by land; the sea may have only a conditional border (the Sargasso) or to separate the continents and major Islands from each other.