Compléter Air pollutionVersion en ligne What do you know about air pollution? Double click on the given words in order to fill them in. par Lis Linka 1 radioactivity fires chemicals outdoors chemicals emissions pollutes eruptions natural Human pollutant human Natural fossil fuels pollution indoors Everithing that the air is called a . Air can result from both and actions . events that pollute the air include forest , volcanic and natural . activities that pollute air are burning of , from factories and plants , . Air can be polluted both and . Smoking , , dust are examples of indoor air pollution .
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