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The worlds ocean covers about 70 of the Earths surface It is use to produce us many things It is more than a place to swimming sailing and other recreation The ocean serves as a source of energy raw materials and most of all food like fish and seaweed In this essay I will talk about What are our ocean resources and the importance of the oceans in the future First our largest resource in the ocean is food There are two different kinds of food in the ocean such as marine plants and marine animals These two kinds of resources are reborn resources and it will never be end For marine plants we have the algaes family like seaweed During ebb tide you can find the seaweed between rocks For the marine animals we have fish and shrimp The fish and shrimp are always moving around the ocean and follow the ocean currents What is ocean current It is a movement of ocean that can bring the fish to other places There are two kinds of circulation create the currents in the ocean They are 1 wind-driven circulation and 2 Thermohaline circulation Wind-driven circulation result from the wind sets the surface waters into motion as currents The currents generally flow horizontally-that is parallel to the earths surface The wind mainly affects only the upper 100 to 200 meters of water However the flow of wind-driven currents may extend to depths of 1000 meters or more Thermohaline circulation produces great vertical currents hat flow from the surface to the ocean bottom and back The currents largely result from differences in water temperature and salinity The currents move sluggishly from the polar regions along the sea floor and back to the surface In the polar regions The surface waters become colder and saltier Being colder and saltier makes these waters heavier and they gradually flow back toward the surface and replace the surface waters
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