01:27 May 20, 2006 |
English language (monolingual) [PRO] Tech/Engineering - Mining & Minerals / Gems / mineria | |||||
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| Selected response from: Michael Barnett Local time: 05:36 | ||||
Grading comment
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SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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4 +10 | resources (minerals) which can be mined |
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resources (minerals) which can be mined Explanation: Not all minerals can be mined due to technical constraints. |
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Grading comment
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Notes to answerer
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