Atmospheric Pollution
APES Unit 7 Quiz
Test air pollution, smog, inversions, emission controls, acid rain and noise with free APES questions and explanations.
Directions: Select the best answer, then choose Check Answer for an explanation. Mark questions for review or cross out options as you practise.
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What is covered in the APES Unit 7 quiz?
Practise air pollutants, photochemical smog, thermal inversions, CO2 and particles, indoor air quality, emission controls, acid deposition and noise. Choose a topic for five questions with hints and explanations.
- 7.1 Introduction to Air Pollution (5 questions)
- 7.2 Photochemical Smog (5 questions)
- 7.3 Thermal Inversion (5 questions)
- 7.4 Atmospheric CO₂ and Particulates (5 questions)
- 7.5 Indoor Air Pollutants (5 questions)
- 7.6 Reduction of Air Pollutants (5 questions)
- 7.7 Acid Rain (5 questions)
- 7.8 Noise Pollution (5 questions)
Unit 7 has a published 7–10% weighting in the multiple-choice section. Use this atmospheric pollution practice test alongside revision of the other eight AP Environmental Science units.
How to use this atmospheric pollution practice quiz
- Answer before checking.Choose an option, then press Check Answer to record it. Use a hint when you need one; hint use is noted in your results.
- Explain the reasoning.Read the explanation after each answer. For data questions, use the supplied assumptions and separate observed patterns from causal conclusions.
- Revisit weak topics.Review missed answers or questions marked for review. Retry the selection for a fresh attempt, then apply the ideas to new graphs and written questions.
Concept check: Separate emissions from concentrations, particle filters from gas controls, and sound intensity from perceived loudness. Removal efficiency = (inlet - outlet) / inlet x 100%. Decibel and pH scales are logarithmic.
APES Unit 7 quiz FAQs
What does the APES Unit 7 quiz cover?
The quiz has 40 multiple-choice practice questions across all eight Unit 7 topics: air pollution, photochemical smog, thermal inversions, atmospheric CO2 and particulates, indoor air pollutants, air-pollution reduction, acid rain and noise pollution. Questions include applied scenarios, hypothetical data tables and calculations with supplied assumptions.
How much of the AP Environmental Science exam is Unit 7?
College Board assigns Unit 7: Atmospheric Pollution a 7–10% weighting in the multiple-choice section. This independent practice quiz is not an official College Board exam.
Which air-pollution controls should I know for APES Unit 7?
Match each control to its target. Electrostatic precipitators and fabric filters collect particles; flue-gas desulfurization targets sulfur dioxide; selective catalytic reduction targets nitrogen oxides; vapor recovery limits evaporative VOC emissions. A three-way vehicle catalyst addresses CO, hydrocarbons and NOx. No single device removes every pollutant.
Can I see explanations and retry missed questions?
Each recorded answer reveals the correct option and explanation. View results to review missed questions, then use Retry this selection to clear those answers and start a new attempt. Questions marked for review create a separate study set. You can eliminate and restore choices before checking an answer.
How is the quiz score calculated?
Each correct answer earns one point. Answered accuracy uses only answered questions; the selection score uses all questions in that selection, including unanswered ones. Hints are counted separately without a points penalty. The score does not predict an AP grade.
Does my quiz progress save?
Answers, review marks, hints and timer progress save in this browser when local storage is available. They do not sync across devices. The optional 60-second practice timer pauses when this tab is hidden; it is not official exam timing.