Chapter 02 Choice, Opportunity Costs, and Specialization

Lesson 1 PrOduCTION POSSIbIlITIES ANd OPPOrTuNITy COST 6. Show Slide 1.2. Explain to students that one resource needed to produce both smartphones and tablet computers is the rare earth mineral coltan. Coltan is a heat-resistant ore that can hold a strong electrical charge; it is used to make capacitors for touch screens in smartphones and ... ................
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