geology wooksheet

Apr 15th, 2015
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geology wooksheet

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Geology WorksheetNameInstitutional AffiliationSeawater is composed of dissolved earth's crust materials and also materials from organisms. Other components which influence sea or marine life include temperature, dissolved gases, salinity, PH and nutrients. The chemical composition of sea water occur with the ions of the opposite charge since they do not exist on their own for example sodium occurs as sodium chloride hence sulphur occurs as sulphate (Chester & Jickells, 2012).The three major layers found in the ocean include the upper layer which is the Mixed Layer; consists of constant warm temperatures due to mechanical processes and convective processes of mixing. Mechanical is caused by waves or surface storms. Waves stir up water hence mixing the cold water with warmer water hence bringing up the warm temperature. Convective mixing occurs due to changes in stability of water due to difference in density. Surface water becomes cold and denser hence it starts sinking then the subsurface water which is warm rises to replace the cold water. During this process the water mixes bringing up the warm effect. Then there is the Main Thermocline layer; this layer is marked by rapid water temperature decrease with depth. Small seasonal temperature chances in low latitudes make it hard to differentiate between seasonal and permanent thermoclines. The third layer is Deep Water Layer; this is the bottom layer of water in the sea. This layer consists of constant cold temperatures

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