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Slide 10

    TEXT VERSION OF SLIDE:

    Type: Picture Slide
    Content: Includes photo of shelf containing cleaners, powders and polishes.

    Speaker Notes: Silica is used in industry as an abrasive cleaner and as an inert filler. It can be found in scouring powder and metal polish. It is used as an extender in paint, as wood filler, in concrete, and as a component in road-surfacing mixtures.