Transcript -- Rocks for Roads

More episodes from "Earth's physical resources: rocks for roads - for iPad/Mac/PC"

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  Rocks for Roads

  6/23/2009

  0:56

  An an introduction to this album
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  Transcript -- Rocks for Roads

  6/23/2009

  Transcript -- An an introduction to this album
• 

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  How a quarry works

  6/23/2009

  7:39

  Quarry managers explain how rock is formed and how they extract different layers of stone. Once blasted and processed, it is used to build roads.
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  Transcript -- How a quarry works

  6/23/2009

  Transcript -- Quarry managers explain how rock is formed and how they extract different layers of stone. Once blasted and processed, it is used to build roads.
• 

  Longterm sustainability of quarries

  6/23/2009

  4:35

  A look at the road laying process. The need to supply locally, use natural road products and protect the environment around quarries.
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  Transcript -- Longterm sustainability of quarries

  6/23/2009

  Transcript -- A look at the road laying process. The need to supply locally, use natural road products and protect the environment around quarries.