Countless activities trigger the occurrence of air pollution. As a result, this environmental problem could cause dangerous effects to homo sapiens, plants, and animals. Many of us may think that those business activities which involve smokestacks are the top causes of this environmental problem. Nevertheless many air pollutants are similarly dangerous that can cause damage to our health which aren't noticeable. According to environmental professionals, smoke from fires that springs from natural sources is a harmful form that triggers air pollution. read more