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A pump is a device that moves fluids liquids or gases , or sometimes slurries , by mechanical action. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift , displacement , and gravity pumps. Pumps operate by some mechanism typically reciprocating or rotary , and consume energy to perform mechanical work moving the fluid. Pumps operate via many energy sources, including manual operation, electricity , engines , or wind power , come in many sizes, from microscopic for use in medical applications to large industrial pumps. Mechanical pumps serve in a wide range of applications such as pumping water from wells , aquarium filtering , pond filtering and aeration , in the car industry for water-cooling and fuel injection , in the energy industry for pumping oil and natural gas or for operating cooling towers.
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Food Science pp Cite as. Cereals are plants which yield edible grains such as wheat, rye, rice, or corn. Cereal grains provide the world with a majority of its food calories and about half of its protein. These grains are consumed directly or in modified form as major items of diet flour, starch, oil, bran, sugar syrups, and numerous additional ingredients used in the manufacture of other foods , and they are fed to livestock and thereby converted into meat, milk, and eggs.
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