ES
Sciences
AP Environmental Science
83 questions · 160 minutes on the real exam
Practice
Learn
Exam structure
Total time: 2 hours 40 minutes
MCQSection I: Multiple Choice
80 Qs·90 min·60%
4 answer choices. Standalone and set-based. Many reference data/scenarios.
FRQSection II: Free Response
3 Qs·70 min·40%
1 Design an Investigation + 1 Analyze an Environmental Problem + 1 Propose a Solution.
Scoring
Scored 1–5. MCQ = 60%, FRQ = 40%.
Tips
- ~67 seconds per MCQ
- No calculator allowed
- Know your math: Rule of 70, percent change, energy calculations
What's on this exam
Unit 1: Ecosystems
7%- Ecosystem Structure
- Energy Flow
- Biogeochemical Cycles
Unit 2: Biodiversity
7%- Biodiversity
- Ecosystem Services
- Ecological Disruptions
Unit 3: Populations
13%- Population Ecology
- Human Population
- Demography
Unit 4: Earth Systems
13%- Plate Tectonics
- Soil
- Atmosphere
- Weather & Climate
Unit 5: Land and Water Use
13%- Agriculture
- Forestry
- Mining
- Urbanization
Unit 6: Energy Resources
13%- Fossil Fuels
- Nuclear Energy
- Renewable Energy
Unit 7: Atmospheric Pollution
9%- Air Pollution
- Smog & Acid Rain
- Ozone Depletion
Unit 8: Pollution
9%- Water Pollution
- Solid & Hazardous Waste
- Toxicology
Unit 9: Global Change
18%- Climate Change
- Global Ozone
- Sustainability