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Question
Figure 11.1. In this figure, the dark bars correspond to the remaining years that certain metals are estimated to be economically recoverable at current prices, given known global reserves and assuming current rates of consumption. The entire lengths of the bars (dark red plus orange segments) show the remaining years that shown metals are estimated to be available using current technology on all known deposits, whether economically recoverable or not. All these time lengths could increase, if more reserves are found, or decrease, if consumption rates rise.
Use Figure 11.1 to answer the following questions.
Refer to Figure 11.1. Assuming today's rate of consumption and no discoveries of new reserves, the price of which metal from those listed below is likely to increase most (in percentage of current value) in the next 25 years?
A) zinc
B) iron from ore
C) copper
D) cobalt
E) titanium
Answer
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