This is the gaseous layer that surrounds Earth.
atmosphere
This layer is closest to Earth’s surface.
Troposphere
Vehicles release pollution into the air from this source.
traffic
This colorless, odorless gas produced from combustion can be deadly.
CO
Smog forms from reactions initiated by this energy source.
Sunlight
Air is a mixture of these that make up the atmosphere.
gases
Most weather occurs in this layer.
Troposphere
Factories and manufacturing contribute to pollution from this source.
Industry
These compounds containing carbon participate in photochemical reactions.
VOCs
Smog is a mixture of radiation fog and these.
Gaseous Pollutants
This force keeps gases close to Earth.
Gravity
This layer contains the ozone layer.
Stratosphere
Fertilizers and pesticides are pollution sources from this sector.
Agriculture
This gas can combine with water vapor to create acid rain.
Sulfur Dioxide
Acid rain forms when sulfur oxides mix with this in the atmosphere.
About this percent of the atmosphere is nitrogen.
78%
This layer is where meteors burn up.
Mesosphere
Burning fossil fuels for electricity is part of this pollution source.
Energy Generation
This photochemical oxidant is a major part of smog.
Ozone
Acid rain has this type of pH.
low pH
About this percent of the atmosphere is oxygen.
21%
This outermost layer contains satellites and space technology.
Exosphere
Heating homes and using products like paints and cleaners are examples of pollution from this group.
Consumers
Tiny particles and droplets in the air are called this type of pollution.
Particulate Matter
Photochemical reactions are reactions started by this.
sun