
This map shows a day when the air quality was bad. See the area in red? That shows unhealthy air quality. Wildfires in Quebec, Canada made the air unhealthy.
Photo Credit: AirNow/U.S. Environmental Protection Agency
Fire gives off light. Fire gives off heat. People use … read more
World Autism Awareness Day is April 2, 2019. Why do … read more
This man works for the Centers for Disease Control (CDC). … read more
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