This is the lowest layer of the atmosphere where weather occurs.
What is the troposphere?
This gas is a major contributor to the greenhouse effect and climate change.
What is carbon dioxide (CO₂)?
This device in cars helps reduce harmful emissions.
What is a catalytic converter?
This weather condition traps pollutants near the surface.
What is a temperature inversion?
These atmospheric pollutants are responsible for respiratory issues and eye irritation.
What are ozone and smog components?
This layer contains the ozone layer that protects Earth from UV rays.
What is the stratosphere?
These pollutants are tiny solid or liquid particles suspended in the air.
What is particulate matter?
These are used in factories to clean exhaust gases before they are released.
What are scrubbers?
This type of smog forms when sunlight reacts with NOx and VOCs.
What is photochemical smog?
This form of pollution disrupts sleep and wildlife behavior.
What is light pollution?
Meteors burn up in this atmospheric layer.
What is the mesosphere?
These gases are produced by cars and industrial processes and help form smog.
What are nitrogen oxides (NOx)?
The international agreement was designed to phase out ozone-depleting substances.
What is the Montreal Protocol?
A common location for temperature inversions to form.
What are valleys or low-lying areas?
These pollutants come from gasoline, paint, and other solvents.
What are VOCs (Volatile Organic Compounds)?
The layer that includes the ionosphere and is home to the auroras.
What is the thermosphere?
This type of smog is caused mainly by coal combustion and sulfur oxides.
What is industrial smog?
This index measures and reports daily air quality levels.
What is the AQI (Air Quality Index)?
This pollutant is helpful in the stratosphere but harmful at ground level.
What is ozone (O₃)?
This gas is colorless, odorless, and deadly in high concentrations.
What is carbon monoxide (CO)?
The outermost layer where satellites orbit.
What is the exosphere?
These chemicals were phased out by the Montreal Protocol due to ozone depletion.
What are CFCs (chlorofluorocarbons)?
A strategy to reduce smog by decreasing traffic and emissions.
What is promoting public transportation or increasing catalytic converter use?
This kind of precipitation is caused by sulfur and nitrogen compounds in the air.
What is acid deposition (acid rain)?
This pollution type can interfere with hearing and cause stress.
What is noise pollution?