Q35 of 54 Page 351

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.

More from this chapter

All 54 →
33

The constituent of polluted air which contributes in producing acid rain is:

 34

The Kyoto Protocol is associated with one of the following. This one is:

 36

Which of the following disease cannot be caused by drinking of river water contaminated with untreated sewage?

 37

Which of the following statement about ozone is correct?