2. the air pollution problem caused by nature, such as.The explosion of the volcano, causing smoke and ashes distributed to air a lot.Pollution caused by forest fires is causing haze that is harmful to the respiratory system.Pollution caused by rotting fossil If the chemical reaction will cause carbon dioxide.Ammonia gas is gas and explode into the air, and air pollution caused by dust.Which is caused by an object that smashed grinding bumps.Until the split into small pieces when thukkrasae wind, it makes dispersion in the air.
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