Which metal pollute the air of a big city?
A) Chromium B) Lead C) Copper D) Zinc
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lead is the metal which polluted the air of a big city.
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Lead pollutes the air of a big city. Lead (Pb) is a metal found naturally in the environment as well as in manufactured products. The major sources of lead emissions have historically been from fuels in on-road motor vehicles (such as cars and trucks) and industrial sources.
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