text: STUDENT_NAMECars are most the most used machine for transportation in modern day. Cars help us travel places faster then bikes, walking, running, etc. But did you know that cars are also helpful for spewing toxic chemicals in the air. People are unaware that the cars are destroying the oxygen that we have here on earth and produce oxygen into smog. To reduce the pollution of the chemicals that cars make is to simply show citizens the advantages of limiting car usages.