7 min
How a quarry works Earth's physical resources: rocks for roads - for iPad/Mac/PC
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- Kurser
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.
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.
7 min
Mer av The Open University
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