Q1. [1] straightforward exam-ready
Which of the following correctly describes the term 'ore'?
(A) A pure mineral with no impurities
(B) An accumulation of a mineral mixed with other elements in sufficient concentration for commercial extraction
(C) A rock that contains only non-metallic minerals
(D) Any naturally occurring element found in the earth's crust
- A A pure mineral with no impurities
- B An accumulation of a mineral mixed with other elements in sufficient concentration for commercial extraction
- C A rock that contains only non-metallic minerals
- D Any naturally occurring element found in the earth's crust
Generated by claude-sonnet-4-6 · 2026-06-26 13:32 · grounding rag
Model Answer
(B) An accumulation of a mineral mixed with other elements in sufficient concentration for commercial extraction.
Explanation
The textbook (Mode of Occurrence of Minerals, Ch. 5) defines ore exactly as in option B: "The term ore is used to describe an accumulation of any mineral mixed with other elements… in sufficient concentration to make its extraction commercially viable." Options A, C, and D are incorrect as they contradict this definition.