Eutrophication - Fertiliser causes damage to ponds, Titration - The reaction between acid and alkali using a burette, Subduction - When the oceanic plate goes under the continental plate, Haber Process - Making ammonia from nitrogen and hydrogen, Electrolysis - The process that purifies copper using electricity, Rusting - The reaction of iron with oxygen and water, Brine - A salt solution that can be used to make hydrogen, chlorine and sodium hydroxide, Composite Material - Something that is made up of a number of materials mixed together (like reinforced concrete),

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