What is it: the ocean?
Sadly, most of the world's population lives far from the seas and oceans. Meanwhile, the area of the World Ocean is 71% of the surface area of the Earth.
For those who have never seen the ocean, in this article we will try to tell what the ocean is, and what role the oceans play in the life of people.
Oceans are the largest water bodies on Earth, part of the oceans - the continuous water shell of the planet. It is believed that it was in them that life on Earth originated. There is a theory of the oceanic origin of the mineral composition of blood, according to which the first organic compounds on our planet arose from mineral salts and water of the oceans and, gradually becoming more complicated, eventually led to the appearance of simple and, at first, complex organisms. So we all owe our existence to the ocean.
What is the World Ocean
The ocean is divided by continents and large archipelagoes into several parts, each of which has its own conventional boundaries and name.At different periods of time, scientists identified 4 or 5 oceans on Earth, depending on whether the existence of the Southern Ocean was recognized or not. At the moment, the world community has adopted the point of view on which there are only 4 oceans:
- Pacific Ocean (the largest and deepest ocean of the Earth);
- Atlantic Ocean;
- Indian Ocean;
- Arctic Ocean.
The term Southern Ocean is conventionally used to denote the water space around Antarctica and consists of the waters of the Pacific, Atlantic and Indian oceans.
The value of the oceans for human life and for the entire planet is quite difficult to overestimate:
- Oceans regulate the climate on Earth: they accumulate heat in the summer months and give it away in winter, various sea currents affect the climate of coastal countries, etc.
- They are actively involved in the water cycle in nature.
- All elements of the periodic table of Mendeleev are dissolved in sea water, first of all, important mineral substances, such as table salt, bromine, potassium and many others.
- The ocean is a habitat for a variety of microorganisms, plants, algae, fish, reptiles, and even some mammals.Many of them are items of fishing and hunting and serve for various purposes of both food and medical industries.
- The oceans contributed to the resettlement of peoples and the settlement of all six continents: since people mastered navigation, they have been able to discover and master many new lands.
There is no doubt that the ocean still contains many secrets and treasures that man has yet to discover. Oceanology is concerned with the science of oceanology.
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