NATURAL RESOURCES, ENVIRONMENT, AND AGRICULTURE

Environmental
Science
Technician

Science
Skill Check

You are concerned about air pollutants from both man-made and natural sources. The pie chart below shows the major causes of air pollution in the United States. In air pollution, the pollutants include gases, liquids, and solids. Forest fires, which cause 8% of the country’s air pollution, release dust, smoke, pollens, viruses, and bacteria that pollute the air. List two harmful substances released in the atmosphere by fossil-fuel-powered transportation. You may refer to the Internet or an encyclopedia if you wish.

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