Book: Lakhmir Singh & Manjit Kaur - Science
Chapter: 18. Pollution of Air and Water
Subject: Chemistry - Class 8th
Q. No. 35 of Multiple Choice Questions (MCQs)
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35
Which of the following will be reduced in air in a city forest when a lot of dust and fly ash in emitted by a coal-based factory in the vicinity?
The various air pollutants discharged by motor vehicle and by the burning of fossil fuel in a factory are carbon dioxide, carbon monoxide, nitrogen oxides and smoke. It results in the decrease in the amount of oxygen in the air.
