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Earth's physical resources: rocks for roads - for iPod/iPhone

The Open University 2009
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    An an introduction to this album...
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    • 15 years ago
    00:56
    Transcript -- An an introduction to this album...
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    • 15 years ago
    00:00
    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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    • 15 years ago
    07:39
    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....
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    • 15 years ago
    00:00
    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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    • 15 years ago
    04:35
    Transcript -- A look at the road laying process. The need to supply locally, use natural road products and protect the environment around quarries....
    • 0

    • 15 years ago
    00:00