APES Ch27Vocab Lytle Word Scramble
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Question | Answer |
mineral resources | Elements,chemical compounds, minerals, or rocks concentrated in a form that can be extracted to obtain a usable commodity. |
ore deposits | Earth materials in which metals are concentrated in high concentrations sufficient to be mined |
reserve | Known and identified deposits of earth materials from which useful materials can be extracted profitably with existing technology and under present economic and legal conditions. |
R-to-C ratio | A measure of the time available for finding the solutions to depletion of nonrenewable reserves, where R is the known reserves and C is the rate of consumption. |
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