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    Question

    Which city was highlighted as the world's most polluted

    in January 2025?
    A Beijing Correct Answer Incorrect Answer
    B New Delhi Correct Answer Incorrect Answer
    C Hanoi Correct Answer Incorrect Answer
    D Lahore Correct Answer Incorrect Answer
    E Dhaka Correct Answer Incorrect Answer

    Solution

    Hanoi topped the list of the world's most polluted cities with PM2.5 levels of 266 micrograms per cubic meter.

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