With new technologies introduced into our society in the past hundred years such as motor vehicles and electric utilities, many pollutants are put into the air. One of these pollutants is Nitrogen oxide. Nitrogen oxide, or NOx, is a group of highly reactive gases, all of which contain nitrogen and oxygen. These gases form when fuel is burned at high temperatures. These gases react in the presence of sunlight and can be carried hundreds of …showed first 75 words of 1703 total…

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