Air Pollution Is A Big Prblem In Many Parts Of The World

.What Cause Air Pollution?Bunrning Garbage And Paper Wastes PrblemThe Air.Dust Storms And Forest Fires Pollute The Air ,Too.The Some From Burning Fuel Has Poisonous Gase And Dust .These Enter The Ải And Make It Dirty.What Should We Do To Protect Our Environment?What Is A Big Problem In Many Parts Of The World?

1 what is a big Prblem in many parts of the world?

2 what pollutes the air?

3 dose the smoke from burning fuel have poisonous gases and dust?

4 do these gases and dust make the air dirty?