Daffa Rafih

AIR POLLUTION     Hello everyone, this time iwant to post about the "Service learning" assigment. I observed about Air pollution arround me.        Air pollution is caused by solid an liquid particles in the air. These particles and gases can come from car and truck exhaust, factories, dust, pollen, mold spores, volcanoes, and wildfires. The solid and liquid particles suspended in our air are called aerosols.      Any particle that gets picked up into the air or is formed from chemical reactions in the air can be an aerosol. Many aerosols enter the atmosphere when we burn fossil fuels such as coal and petroleum and wood. These particles can come from many sources, including car exhaust, factories and even wildfires. Some of the particles and gases come directly from these sources, but others form through chemical reactions in the air.      Aerosols can come from other places, too, such as ash from an erupting volcano. Dust, pollen from plants and mold spores are also exam