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      Question

      Primary pollutants are pollutants that are emitted

      directly from a source, such as smokestacks of power plants and manufacturing facilities. What are secondary pollutants?
      A Pollutants that are not harmful to the environment Correct Answer Incorrect Answer
      B Pollutants formed when other pollutants react with each other Correct Answer Incorrect Answer
      C Pollutants emitted directly from natural sources Correct Answer Incorrect Answer
      D Pollutants found only in water bodies Correct Answer Incorrect Answer
      E None of these Correct Answer Incorrect Answer

      Solution

      Secondary pollutants are not emitted directly from a source; they form when primary pollutants react with other substances. Examples include photochemical smog and ground-level ozone.

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