Assertion (A): Chile continues to be an important producer of copper in the world. Reason (R): Chile is endowed with the world’s largest deposit of porphyry copper.
- ABoth A and R are true, and R is the correct explanation of ACorrect
- BBoth A and R are true, but R is not a correct explanation of A
- CA is true, but R is false
- DA is false, but R is true
Explanation
The correct option is A because both statements are factually accurate and the reason directly explains the assertion. Chile is consistently the worlds leading producer of copper, accounting for nearly one third of global output. This dominant position is primarily due to its unique geological advantage, as the country possesses the largest known reserves of porphyry copper deposits, mainly located in the Andes Mountains. Since the presence of these massive deposits is the fundamental reason why Chile can maintain its status as a top producer, the reason provides a correct explanation for the assertion.

Related questions
More UPSC Prelims practice from the same subject and topic.
- Prelims 1999GS1geography
Tourism industry in India is quite small compared to many other countries in terms of India’s potential and size. Which one of the following statements is correct in this regard?
- Prelims 1999GS1geography
Match List I with List II and select the correct answer using the codes given below the Lists: List I (Timber) (Country) I. Cedar A) Myanmar II. Douglas Fir B) Canada III. Mahogany C) Mexico IV. Teak …
- Prelims 1999GS1geography
Match List I with List II and select the correct answer using the codes given below the Lists: List I I. Cotton A) Rainfall 1000-1500 mm; Temperature 40° - 60°C II. Flax B) Rainfall 1500-2000 mm; Temp…
- Prelims 1999GS1geography
Which one of the following port cities in Venezuela has been developed as an oil port?
- Prelims 1999GS1geography
A person of mixed European and Indian blood in Latin America is called a
- Prelims 1999GS1geography
Match List I with List II and select the correct answer using the codes given below the Lists: List I (Industries) List II I. Pearl fishing A) Pune II. Automobiles B) Tuticorin III. Ship-building C) P…