Clue: This type of smog forms when sunlight reacts with pollutants in the air.
Answer: What is photochemical smog?
These are major human sources of NOx.
Answer: What are cars and factories?
Clue: Photochemical smog can make this body system harder to use.
Answer: What is the respiratory system/lungs?
Clue: Smog can damage the leaves of these living organisms.
Answer: What are plants?
Clue: Using buses, trains, or carpools instead of driving helps reduce this.
Answer: What is air pollution/smog?
Clue: This gas is one of the main harmful components found in photochemical smog.
Answer: What is ozone?
This type of smog forms when sunlight reacts with pollutants.
Answer: What is photochemical smog?
Clue: This common breathing condition can worsen because of smog.
Answer: What is asthma?
Clue: Ground-level ozone can reduce growth in these food-producing organisms.
Answer: What are crops?
Clue: These vehicles produce fewer emissions than gasoline-powered cars.
Answer: What are electric vehicles?
Clue: Photochemical smog is most common in large areas with many of these.
Answer: What are cars/vehicles?
These two pollutants react in sunlight to form photochemical smog.
Answer: What are nitrogen oxides (NOx) and volatile organic compounds (VOCs
Clue: Smog may cause irritation in these two body parts.
Answer: What are the eyes and throat?
Clue: Smog reduces this, making it harder to see long distances.
Answer: What is visibility?
Clue: Governments create these to limit pollution released into the air.
Answer: What are environmental regulations/laws?
Clue: This weather condition helps photochemical smog form more quickly.
Answer: What is sunny weather/high sunlight?
This body system is most affected by photochemical smog.
Answer: What is the respiratory system?
Clue: Long-term exposure to smog can reduce this ability during exercise.
Answer: What is lung function/capacity?
Clue: Smog contributes to damage in these protected outdoor areas.
Answer: What are national parks?
Clue: Factories can install these to reduce pollutants from smokestacks.
Answer: What are filters/scrubbers?