Ecosystems, pollution, energy, sustainability.
Session settings
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Real Test
Full-length test
80 questions, 90 min countdown. Same length and pacing as the real exam.
Best on desktop - a computer is recommended for full-length tests.
Warmup
Quick practice
Random questions across all topics. Pick a difficulty to dial up the challenge.
Targeted
Practice by topic
Drill one skill until it stops scaring you.
Smart Mix
AI smart quiz
Pulls real questions from the AP Environmental Sci bank by topic + difficulty, and tops up with fresh AI when the bank runs short.
AI · Fresh
Endless AI questions
Brand-new questions written by AI every time — no repeats. Great when you've drilled the bank dry.
Stuck? Ask the AI tutor.
Adaptive help that explains your mistakes step-by-step.
Practice AP Environmental Sci free response
2 rubric-graded prompts. AI scores against the official rubric.
Exam blueprint
80 MCQ + 3 FRQ
Unit 1The Living World: Ecosystems6–8%
Unit 2The Living World: Biodiversity6–8%
Unit 3Populations10–15%
Unit 4Earth Systems and Resources10–15%
Unit 5Land and Water Use10–15%
Unit 6Energy Resources and Consumption10–15%
Unit 7Atmospheric Pollution7–10%
Unit 8Aquatic and Terrestrial Pollution7–10%
Unit 9Global Change15–20%
Source: College Board Course & Exam Descriptions, 2025–26.