The Great Smog of 1952 was a severe air-pollution event which affected _______.
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Polio is a disease caused by which of the following?
The 48th World Economic Forum (WEF) annual meeting was held in which of the following countries?
The market structure called monopoly exists where there is exactly ______ seller in any market.
Ad Valorem tax is levied on?
Which of the following forms a base pair with thymine?
Matter is classified as a
Which of the following is a mixture?