Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).
World Superlatives & RecordsLargest / Smallest / Highest / Longest
Which country has installed the world's largest air purifier to battle smoke?
- A.Japan
- B.ChinaCorrect answer
- C.United States
- D.Germany
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Practice these MCQs in the appQuick fact: China has installed the world's largest air purifier to combat severe air pollution and smog.