Official Answer Key & Detailed Solution
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Correct Answer: Option (A) — Both A and R are true and R is the correct explanation of A
Concept & Option Breakdown
Standard Reference VerifiedAssertion (A) is correct: Chile is the world's leading producer and exporter of copper. Reason (R) is correct: The Andes Mountains in Chile contain extensive low-grade porphyry copper deposits (such as Chuquicamata and Escondida), which are highly amenable to large-scale open-pit mining, directly explaining Chile's global dominance.
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