A mineral is termed as 'ore', if ____________________?
Correct answer: D. A metal can be economically extracted from it
- A. All A , B. and C.
- B. It contains ≥ 40% metal
- C. The metal present in it is costly
- D. A metal can be economically extracted from it
Explanation
An ore is a mineral or rock from which a metal can be extracted economically using available processing methods. A fixed metal percentage or high metal price alone does not define an ore.
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