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UPSC Prelims 1992 · World Geography · Countries, Rivers and Resources
In which type of rocks, metals like gold and copper are mostly found?
- (a) Old igneous
- (b) Old metamorphic
- (c) Old sedimentary
- (d) New metamorphic
Show the answer and explanation
Answer: (a) Old igneous
Gold and copper usually occur in old igneous (and associated) rocks.
Why the others are wrong
(b) Old metamorphic rocks also host metals — but the key picks igneous.
(c) Sedimentary rocks host coal and oil.
The trap
None.
🔒 Metallic minerals: igneous/metamorphic (Peninsular India). Fuels: sedimentary.
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