OCeans

Two thirds of our planet is covered with the sea. The Pacific, the Atlantic Ocean, India and the Arctic are the major seas of the world. They are formed by a series of geological processes that continue to influence the Earth. The seven major parts called lithospheric plates constitute the Earth's mantle and crust. Millions of years ago, these plates were combined and constantly moved (slowly growing like a nail) above a soft, soft rock under the Earth's crust.

There are five seas on the earth: the Pacific Ocean, the Indian Ocean, the Arctic Ocean, the Atlantic Ocean, and the South Pole (Antarctica) Sea. The seas are interconnected, but each sea has its own species and characteristics. According to Barbara A. Somerville (Earth's biological cluster system: sea, ocean, coral reef), the Pacific Ocean is the largest and deepest ocean, the Atlantic Ocean is the second ocean. The estuary is where the river meets the ocean and can be defined as a place where salt water is diluted with fresh water. The estuary beyond the barrier beach, coastal bay, tideland, waters are examples of estuaries. They have biological productivity as they have a special water circulation that captures phytonutrients and stimulates primary production.

Over the years geographers have divided the world's oceans into four parts: the Atlantic Ocean, the Pacific Ocean, the Indian Ocean, and the Arctic Ocean. In addition to these oceans, they also describe many other smaller brines, including the sea, bay and estuaries. It was not until 2000 that the South Sea including the waters surrounding Antarctica was formally named. The Pacific Ocean is the world's largest ocean, with an area of ​​60,060,700 square miles (155,557,000 square kilometers). According to the CIA World Profile, it covers 28% of the Earth and is about the same size as almost all the land on Earth. The Pacific is between Asia and Australia in the South Asia of the Western Hemisphere. It has an average depth of 13,215 feet (4,028 meters), but the deepest part of it is deep inside the challengers of the Mariana Trench near Japan. This area is also the deepest place in the world, -35,840 feet (-10,924 meters).