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AP Environmental Science practice test

StudySim's free AP Environmental Science practice test has 24 sample questions with answer explanations. Analyze ecosystems, populations, resources, energy, pollution, and global environmental change. Use the answer explanations to understand the reasoning, then revisit the topics that need more work.

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Sample AP Environmental Science questions

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AP Environmental Science Sample Questions

Practice quiz

1. A grassland producer level contains 20,000 kJ of energy available to consumers. Under a simplified 10% transfer model, how much reaches secondary consumers?

2. Which process converts atmospheric N₂ into forms that can enter food webs?

3. Two ecosystems have the same number of species, but one is dominated by a single species. Which statement is best supported?

4. Which is an ecosystem service provided by wetlands?

5. A population grows from 5,000 to 5,250 in one year. What is its annual percent growth over that year?

6. Using the rule of 70, approximately how long would a population growing at 2% per year take to double?

7. Which change is most directly associated with the demographic transition’s decline in death rates before birth rates fall?

8. A fish population approaches its habitat’s carrying capacity. In a logistic model, what happens to its per-capita growth rate?

9. Which soil characteristic generally increases its ability to retain water and nutrient cations compared with very sandy soil?

10. Why are major rain shadows found on the leeward side of some mountain ranges?

11. A coastal aquifer is pumped faster than it recharges. Which consequence is especially likely?

12. Compared with conventional tillage, how can no-till agriculture reduce soil erosion?

13. Which is a key goal of integrated pest management?

14. A household replaces a 60 W bulb with a 10 W LED used 5 hours per day. How much electricity is saved in 30 days?

15. Which electricity source produces no direct CO₂ emissions during normal electricity generation but generates long-lived radioactive waste?

16. A power plant converts fuel energy into electricity with 35% efficiency. Its fuel emits 0.070 kg CO₂ per MJ of fuel energy consumed. Ignoring other emissions, how much CO₂ accompanies 70 MJ of electrical output?

17. Which condition commonly favors photochemical smog formation?

18. Why can a temperature inversion worsen urban air pollution?

19. Which pair of emissions is most directly associated with acid deposition?

20. Fertilizer runoff triggers an algal bloom in a lake. Why can dissolved oxygen later decline?

21. A persistent fat-soluble pollutant enters an aquatic food web. Which organisms often develop the highest concentrations through biomagnification?

22. Which water-quality measurement most directly indicates microbial oxygen demand from degradable organic matter?

23. Why does rising atmospheric CO₂ contribute to ocean acidification?

24. Which is an example of a positive climate feedback?

0 of 24 answered

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Exam at a glance

AP Environmental Science preparation includes Ecosystems and biodiversity, Populations, Earth systems and resources, Land and water use, Energy resources and consumption, Atmospheric pollution, Aquatic and terrestrial pollution, Global change. This StudySim bank provides original multiple-choice skill practice. Consult the official framework for the complete exam format, required tasks, and current policies.

Detail	Information
Content framework	College Board: AP Environmental Science course framework

Source: College Board: AP Environmental Science course framework · Last reviewed Oct 27, 2026

How to practice for AP Environmental Science with StudySim

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AP Environmental Science content areas

Ecosystems and biodiversity

Practice ecosystems and biodiversity with original questions and explanations. Topic labels describe this bank, rather than official section weights.

Populations

Practice populations with original questions and explanations. Topic labels describe this bank, rather than official section weights.

Earth systems and resources

Practice earth systems and resources with original questions and explanations. Topic labels describe this bank, rather than official section weights.

Land and water use

Practice land and water use with original questions and explanations. Topic labels describe this bank, rather than official section weights.

Energy resources and consumption

Practice energy resources and consumption with original questions and explanations. Topic labels describe this bank, rather than official section weights.

Atmospheric pollution

Practice atmospheric pollution with original questions and explanations. Topic labels describe this bank, rather than official section weights.

Aquatic and terrestrial pollution

Practice aquatic and terrestrial pollution with original questions and explanations. Topic labels describe this bank, rather than official section weights.

Global change

Practice global change with original questions and explanations. Topic labels describe this bank, rather than official section weights.

Study tips for AP Environmental Science

Explain your answer

Before opening the explanation, identify the evidence, calculation, or rule that supports your choice. Explain why the other choices do not fit.

Practice a weak topic

Use the topic and difficulty filters in exam prep, then review your missed questions. These difficulty labels are editorial estimates, not calibrated exam statistics.

Use official exam materials too

Pair these skill checks with official practice materials for pacing, extended responses, and any tasks not represented by multiple-choice practice.

A few useful details

AP Environmental Science FAQ

Is this an official AP Environmental Science exam?

No. StudySim writes original practice questions independently. This is not a full-length exam, an official past paper, or a predictor of an official exam score.

Can I practice without signing up?

Yes. These prepared practice questions and their explanations are free to use without an account. They do not require an AI generation request.

How should I use the practice results?

Use the raw number correct and topic breakdown to decide what to review. Difficulty labels are editorial estimates. Results are not converted into an official scaled score.

Does this include every exam task?

No. This bank focuses on multiple-choice skills. Official exams may also require essays, free responses, performances, audio, projects, or other task formats; use official resources for those components.

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