What is air pollution?

• Any harmful substance that builds up in the air 
• pollen, dust, gases
• industrial pollution
• chemicals in the water

What is a primary pollutant? 

• pollutant that is put directly into air by human activities
• pollutants that react with other primary pollutants

What is a secondary pollutant? 

• pollutant that is put directly into air by human activities
• pollutants that react with other primary pollutants

Which ones are consider primary air pollutants?

• Nitrogen oxides 
• Sulfur dioxides
• Carbon monoxide 
• all are correct!!!!

Air pollution problems became worse around the Industrial Revolution of the 1800’s when fossils fuel usage increased and no standards existed. 

• true
• false

Smog is air pollution that hangs over urban areas and reduces visibility.

• TRUE
• FALSE

—The Clean Air Act- regulates vehicle emissions.

• true
• false

A —____________ is a warm air mass traps a cool air mass it will trap pollution with it. 

• Temperature Inversion
• Acid rain formation 
• Air pollution 
• neither of the answer choices

The 78% of the normal composition of air is...?

• Oxygen 
• Nitrogen
• Carbon dioxide
• Argon

The biggest producer of Carbon Monoxide is

• Factories
• Transportation
• Chemical waste
• Fires