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Rated: E · Article · Nature · #2108914
This article discusses the life and other resources present beneath the ocean surface.
The oceans are the basis for a large number of species of plants and aquatic animals. It has a large body of saline water. The oceans cover 71% of the earth's surface and the total volume is 1.35 billion cubic kilometers. It is part of the carbon cycle and influences climate and weather patterns. There are more than two million species of plants and animals living in the oceans. It is a hydrosphere in itself. Oceans are thought to have originated in the Hadean period and could be the basis for emergence of life on earth. Ocean currents affect the climate by transferring heat from the tropic regions to the polar regions. The life forms present in the oceans are fish, jellyfish, whales, dolphins, porpoises, octopus, squid, lobsters, shrimp, krill, marine worms, plankton, brittle stars, star fish, sea cucumbers and sand dollars. Oceans are also the sources of oil and natural gas. Seismic equipment are used to detect these sources. It generates sound waves that are reflected back from the rock and sediment. It can indicate if oil and natural gas are present underneath. The most productive zones are the north sea, gulf of Mexico, atlantic ocean off the coast of Brazil, west africa, arabian gulf and seas off south asia.
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