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Which metal pollute the air of a big city?

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Which metal pollute the air of a big city?
posted Apr 29, 2016 by Puneet Batra

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2 Answers

0 votes

Lead is very toxic and produces poisonous gas on burning in present of oxygen which is harmful for our health and polluted our big cities.

answer Jul 26, 2016 by Swati Tyagi
0 votes

In Automobile industries, poisonous gas containing mixture of Lead compounds and hydrogen compounds pollute the city, and if inhaled, they can be lethal.

answer Jul 26, 2016 by Erika
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