Book Creator

2'D

by RAFFAELE SMAKAJ

Pages 4 and 5 of 77

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WHAT IS AIR POLLUTION?
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Air pollution is the presence of substances in the atmosphere that are harmful to the health of humans and other living beings, or cause damage to the climate or to materials.
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WHERE DOES IT COME FROM?
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Natural causes:
-volcano eruptions
-forest fires
-dust storms
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Human causes:
-factories
-cars and airplanes
-chemicals
-spray cans
-methan gas
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EFFECTS OF AIR POLLUTION:
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- Global Worming
- Ozone Layer Depletion
- Acid Rain
- Green House Effects
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