1) ___________ is the leading producer of iron-ore in the world . a) Europe b) North America c) Asia 2) Minerals are unevenly distributed across the earth due to differences and _______________ in geological structures . a) variations b) time c) None of these 3) _______________ is not produced in North america every year . a) potash b) mercury c) zinc 4) ____________ and ___________ both produce tin . a) Malaysia , Myanmar b) Malaysia , Indonesia c) Indonesia , Japan 5) _______________ has no known mineral deposit in it . a) Switzerland b) Venezuela c) Brazil 6) The average modern electronic device has more than _______________ minerals in it a) 78 b) 12 c) 35 7) You can always tell if a rock contains copper because then the rock looks ___________ in color . a) orange b) Blue c) Grey

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