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Pearson's BC Pre-Calculus 11 and 12 Worktexts are perfect as a standalone Resource for the new curriculum or as a supplement to the resources you already have: 100% fit to the new curriculum with new lessons highlighting curriculum revisions Focus on competencies Additional practice questions Additional and bigger grid squares, and more room for students to draw graphs Replacement of TI-83 graphing technology with Desmos
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The use of water for industrial purposes is of foremost importance. It is used as a coolant and industrial activities dealing with power generation, steel and iron, paper and pulp and oil require very large amounts of water. The industry, therefore, resorts to large scale abstraction of water from natural water bodies. This water is often treated with chemicals to combat operational problems like biofouling and corrosion. Such withdrawal and subsequent discharge of large amounts of water have the potential to impart significant impact on the recipient water body. The organisms drawn along with the cooling water, as well as those residing at the discharge zone, are subjected to a combination of mechanical, thermal and chemical stress on a continuous basis.