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amalgamation process, using either of following methods: turns valves or opens gates to regulate flow of ore and water over mercury-coated plates. ) adjusts angle of plates to facilitate collection of amalgam. ) scrapes accumulated amalgam from plates and coats plates with mercury. ) turns valves or...
occurs is called trophic level. plants –> insects –> hen –> man. bio-remediation the process of removal of pollutants by using biological methods is called bio-remediation. scientists are trying to reduce the pollutants by using some kinds of bacteria and fungi. in some circumstances, materials like mercury...