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ASSOCIATION OF GOVERNMENTS' CLEAN AIR SURVEY

Introduction: Thank you for taking the Clean Air Survey. Test your knowledge about local air quality and enter for the chance to win great prizes. Two winners will be randomly selected each week. Your personal information will be kept totally confidential. For more information on air quality, visit PimaCleanAir.com or our Facebook page at facebook.com/PimaCleanAir.

Question Title

* 1. Below are some sources of air pollution. Match the sources of pollution with the relative amounts they produce in Pima County:

	1 percent	4 percent	5 percent	21 percent
Fires	Fires 1 percent	Fires 4 percent	Fires 5 percent	Fires 21 percent
Industry	Industry 1 percent	Industry 4 percent	Industry 5 percent	Industry 21 percent
Motor vehicles	Motor vehicles 1 percent	Motor vehicles 4 percent	Motor vehicles 5 percent	Motor vehicles 21 percent
Trains and planes	Trains and planes 1 percent	Trains and planes 4 percent	Trains and planes 5 percent	Trains and planes 21 percent