Page 4 - CHAPTER- OUR ENVIRONENT
P. 4

CAUSES OF AIR POLLUTION









                                  • Volcanic Eruptions- Volcanic eruptions release

                                      poisonous gases into the air.


                                  • Forest fire- Forest fires also release poisonous


                                      gases into the air


                                  • Deforestation- The large scale cutting down of

                                      trees or clearing forests is known as deforestation.



                                  • Burning fire crackers-Burning fire crackers during

                                      celebrations add poisonous gases into the air



                                  • Burning large heap of waste- It decreases the air

                                      quality.
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