Introduction of Sea

SEA

A Sea is a large  body of salt water that is surrounded in whole or in part by land. The Sea is the interconnected system of earth’s salty , Oceanic  waters  considered as one global ocean or as several principal oceanic devisions. The sea is conventioally devided into upto five large oceanic sections including the international hydrographic organaization’s four named oceans, follow by Atlantic, Pacific Indian and Artic and the southern ocean.

The sea is an essential aspect of human trade, travel, mineral extraction and power generation. This Has also made it essential to warefare and left major cites exposed to earthquakes and valcaneos from near by faults; powerfull tsunami  waves , and hurricanes, typhoons and cyclones produced in the tropics.It is the secene of leisure activities including swimming, diving, surfing and sailing. However, population growth, industrialazation, and intensive farming have all contibuted to present day marine polution. Atmospheric carbon dioxide is being absorbed in increasing amounts, lowering its pH in a process known as ocean acidification. The shared nature of the sea has made overfishing an increasing problem.