AP Environmental Science Flashcards: Reduction Of Air Pollutants

What this deck covers

This deck focuses on Reduction Of Air Pollutants, giving you a quick way to review the definitions, rules, and examples that matter most for AP Environmental Science.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Flashcard 1: What chemical compound is reduced by the use of biofuels?

Answer: Carbon dioxide (CO₂). Plant-based fuels produce less net carbon emissions.

Flashcard 2: Identify a natural method to combat air pollution.

Answer: Increasing green spaces. Vegetation absorbs pollutants and produces oxygen.

Flashcard 3: What is a common method to reduce indoor air pollution?

Answer: Improving ventilation. Fresh air circulation dilutes indoor pollutant concentrations.

Flashcard 4: Identify the pollutant primarily reduced by wet scrubbers.

Answer: Sulfur dioxide (SO₂). Water-based systems absorb and neutralize $SO_2$ gas.

Flashcard 5: Which natural phenomenon can temporarily improve air quality?

Answer: Rainfall. Water droplets wash pollutants from the atmosphere.

Flashcard 6: Identify a measure to reduce emissions from transportation.

Answer: Promoting public transportation. Shared transit reduces per-person vehicle emissions.

Flashcard 7: What is the purpose of an air quality index (AQI)?

Answer: To communicate how polluted the air currently is. Numerical scale indicating current air pollution levels.

Flashcard 8: What pollutant is primarily controlled by scrubbers in industrial settings?

Answer: Sulfur dioxide (SO₂). Wet scrubbers neutralize $SO_2$ using alkaline solutions.

Flashcard 9: Identify a major natural source of nitrogen oxides (NOₓ).

Answer: Lightning strikes. High-energy electrical discharge splits $N_2$ and $O_2$ molecules.

Flashcard 10: What is a key strategy to reduce carbon monoxide emissions from vehicles?

Answer: Improving fuel efficiency and engine design. Better combustion efficiency reduces incomplete burning.

Flashcard 11: What technology captures carbon dioxide from industrial emissions?

Answer: Carbon capture and storage (CCS). Removes $CO_2$ from emissions before atmospheric release.

Flashcard 12: What is a key component of acid rain?

Answer: Sulfuric acid (H₂SO₄). $SO_2$ reacts with water to form acidic precipitation.

Flashcard 13: What legislation regulates air pollutant emissions in the U.S.?

Answer: The Clean Air Act. Federal law establishing emission standards and air quality goals.

Flashcard 14: Identify a technology to reduce emissions in industrial processes.

Answer: Baghouse filters. Fabric filters capture particles from industrial exhaust.

Flashcard 15: What is the main effect of nitrogen oxides on the environment?

Answer: Contribute to smog and acid rain. $NO_x$ creates ozone and acidic precipitation reactions.

Flashcard 16: What action reduces emissions from deforestation?

Answer: Reforestation. Replanting trees restores carbon sequestration capacity.

Flashcard 17: What is the primary source of volatile organic compounds (VOCs) emissions?

Answer: Industrial processes and vehicle exhaust. Chemical solvents and fuel vapors are major VOC sources.

Flashcard 18: Which air pollutant is primarily produced by incomplete combustion?

Answer: Carbon monoxide (CO). Insufficient oxygen prevents complete conversion to $CO_2$.

Flashcard 19: Which gas is reduced by using low-sulfur coal?

Answer: Sulfur dioxide (SO₂). Lower sulfur content directly reduces $SO_2$ emissions.

Flashcard 20: Which air pollutant is directly reduced by using electric vehicles?

Answer: Carbon monoxide (CO). Zero tailpipe emissions eliminate combustion pollutants.

Flashcard 21: What is the main source of sulfur dioxide (SO₂) emissions?

Answer: Burning fossil fuels, particularly coal, in power plants. Coal contains sulfur compounds that release $SO_2$ when burned.

Flashcard 22: What is a major consequence of air pollution on public health?

Answer: Increased incidence of asthma. Air pollutants trigger and worsen respiratory conditions.

Flashcard 23: Which air pollutant is a byproduct of burning biomass?

Answer: Particulate matter. Organic matter combustion releases fine particles.

Flashcard 24: Identify a natural method to combat air pollution.

Answer: Increasing green spaces. Vegetation absorbs pollutants and produces oxygen.

Flashcard 25: What is the primary benefit of using clean coal technology?

Answer: Reduces sulfur dioxide and nitrogen oxide emissions. Advanced combustion reduces harmful gas formation.

Flashcard 26: Which pollutant is reduced by the use of solar energy?

Answer: Carbon dioxide (CO₂). Renewable energy eliminates fossil fuel combustion emissions.

Flashcard 27: What device reduces emissions of particulate matter from diesel engines?

Answer: Diesel particulate filters. Trap and oxidize soot particles in exhaust systems.

Flashcard 28: What is the purpose of using catalytic converters in vehicles?

Answer: Convert toxic gases to less harmful pollutants. Chemical reactions transform harmful gases into safer compounds.

Flashcard 29: Identify a benefit of planting trees in urban areas.

Answer: Reduce carbon dioxide and improve air quality. Trees absorb $CO_2$ and filter air pollutants.

Flashcard 30: Which sector is the largest contributor to ammonia emissions?

Answer: Agriculture. Fertilizers and livestock waste release ammonia compounds.