Question

HOW ARE POLLUTED CITIES COVERED WITH SMOG?

Answer 1

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$\underline{ANSWER}$ ➡

Smog is a kind of air pollution , originally named for the mixture of smoke and fog in the air . Smog is a problem in a number of cities and continues to harm human health . Smog can form in almost any climate where industries or cities release large amounts of air pollution, such as smoke or gases . It often stays for an extended period of time over densely populated cities or urban areas , and can build up to dangerous levels . Photochemical smog forms in warm , densely populated cities with many vehicles . Canada , Delhi (India) , Beijing (China) , Mexico City (Mexico) , London , Santiago (Chile) etc. are some populated cities that are covered with smog .

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Answer 2

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