What is the difference between a lake and the sea? Now we find out


Due to the fact that many of the lakes that are nowexist in nature, wrongly called seas, people are often confused in these two terms. In order to be able to accurately classify a concrete reservoir into one of the categories, it is necessary to know what the lake differs from the sea from the scientific, geographic and geological point of view. So now we will look at the main features of both, and then compare them with each other.

Short definition of the lake

So, the lake is called a closed land from allsides formation, which is a deep hollow. It is filled with water and is not connected with other water bodies of the planet (rivers, seas, glaciers and other). Lakes are referred to as inland waters, which can have different origins and characteristics. For example, the largest lake is the Caspian (it is often called the sea), filled with salt water. The deepest reservoir of the planet is Baikal, a freshwater source located in the zone of the purest air.

than the lake differs from the sea

Tectonic lake

To understand what the lake is different from the sea, it is importantknow the history of the origin of this pond. We will consider them in a clear example and compare. Tectonic plate breaking or its deformation is the right way to the appearance of a depression that can be filled with water. It was during such lithospheric changes that the notorious Baikal formed, as well as the Caspian Sea. A number of tectonic lakes can be attributed to the Aral Sea, which in our days is almost completely dried up. A number like educated lakes is traced on every continent. In Africa, the rupture of tectonic plates spawned reservoirs called Edward, Albert, Malawi and others. In Israel there is also a giant salt tectonic lake - the Dead Sea.

Lakes of highlands

It is easier to understand than the lake differs from the sea,you can, considering this pond in a mountainous area. In such regions, the so-called lake lagoons are popular, which are formed by rock falls and large stones. Thus, the path of rivers and other sewage ponds in the gorge ceases, and a closed deaf lake is formed. You can find similar miracles of light in every area of ​​mountain ranges. They are in Canada, and in the States, and in Russia, and most of them are concentrated in Asia, between numerous elevations. In this topic, we also note that there are also forbidden lakes for swimming, which are located in the craters of volcanoes. They have unearthly beauty, but the water contains many gases and acids.

the difference between lake and sea


To finally understand what the lake is likefrom the sea, consider the encoding of the second. The sea is part of one of the oceans of the planet. It can only be salt water, it is directly connected with "fatherly" large waters. The sea separates from the ocean by islands that rise above its level, or underwater ridges. In the sea can be different from the ocean current, flora and fauna, as well as climate. The seas are divided into internal and external. The former are tightly clamped by the continent, they have access to the ocean only through the strait. This is the Azov, Black, Mediterranean seas. The latter are located on the map in the form of bays of one of the oceans, surrounded by islands. They are the Okhotsk, the Caribbean, and the Andaman.

lake definition

Let's sum up the results

So, the main difference between the lake and the sea is thethat the first belongs to the waters of the land, the second to the waters of the World Ocean. It can also be noted that in the seas we meet exclusively salty waters, while lakes can be both fresh sources and mineralized ones. Well, the difference is in the quantity. Today there are 63 seas on the planet, but how many lakes there are - still unknown.

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