9th Class Science Natural resources Question Bank 9th CBSE Science Natural resources

  • question_answer
      Why is the air near the busy roads more polluted than air at a distance from the busy roads?

    Answer:

                      Burning of gasoline to power cars and trucks gives out particulate carbon, carbon dioxide, carbon monoxide, hydrocarbons, oxides of nitrogen and sulphur. Emissions released directly into the atmosphere from the vehicles remain confined in the congested areas near busy roads.


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