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AP Environmental Science
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2026 1 files
- 2026 Questions
2017 1 files
- 2017 Questions
2015 1 files
- 2015 Questions
2014 1 files
- 2014 Questions
- AP Environmental Science — Question index
- 1.2 Terrestrial Biomes
- 1.4 The Carbon Cycle
- 1.5 The Nitrogen Cycle
- 1.6 The Phosphorus Cycle
- 1.9 Trophic Levels
- 1.10 Energy Flow and the 10% Rule
- 1.11 Food Chains and Food Webs
- 2.1 Introduction to Biodiversity
- 2.2 Ecosystem Services
- 2.3 Island Biogeography
- 2.4 Ecological Tolerance
- 2.5 Natural Disruptions to Ecosystems
- 2.6 Adaptations
- 2.7 Ecological Succession
- 3.1 Generalist and Specialist Species
- 3.2 K-Selected and r-Selected Species
- 3.3 Survivorship Curves
- 3.4 Carrying Capacity
- 3.5 Population Growth and Resource Availability
- 3.7 Total Fertility Rate
- 3.8 Human Population Dynamics
- 4.1 Plate Tectonics
- 4.2 Soil Formation and Erosion
- 4.3 Soil Composition and Properties
- 4.6 Watersheds
- 4.7 Solar Radiation and Earth's Seasons
- 4.8 Earth's Geography and Climate
- 4.9 El Nino and La Nina
- 5.1 The Tragedy of the Commons
- 5.2 Clearcutting
- 5.4 Impacts of Agricultural Practices
- 5.5 Irrigation Methods
- 5.6 Pest Control Methods
- 5.7 Meat Production Methods
- 5.8 Impacts of Overfishing
- 5.9 Impacts of Mining
- 5.10 Impacts of Urbanization
- 5.11 Ecological Footprints
- 5.12 Introduction to Sustainability
- 5.13 Methods to Reduce Urban Runoff
- 5.14 Integrated Pest Management
- 5.15 Sustainable Agriculture
- 5.16 Aquaculture
- 5.17 Sustainable Forestry
- 6.1 Renewable and Nonrenewable Resources
- 6.2 Global Energy Consumption
- 6.3 Fuel Types and Uses
- 6.4 Distribution of Natural Energy Resources
- 6.5 Fossil Fuels
- 6.6 Nuclear Power
- 6.7 Energy from Biomass
- 6.8 Solar Energy
- 6.9 Hydroelectric Power
- 6.11 Hydrogen Fuel Cell
- 6.12 Wind Energy
- 6.13 Energy Conservation
- 7.1 Introduction to Air Pollution
- 7.2 Photochemical Smog
- 7.4 Atmospheric CO2 and Particulates
- 7.5 Indoor Air Pollutants
- 7.6 Reduction of Air Pollutants
- 7.7 Acid Rain
- 7.8 Noise Pollution
- 8.1 Sources of Pollution
- 8.2 Human Impacts on Ecosystems
- 8.3 Endocrine Disruptors
- 8.4 Human Impacts on Wetlands and Mangroves
- 8.5 Eutrophication
- 8.6 Thermal Pollution
- 8.7 Persistent Organic Pollutants (POPs)
- 8.8 Bioaccumulation and Biomagnification
- 8.9 Solid Waste Disposal
- 8.10 Waste Reduction Methods
- 8.11 Sewage Treatment
- 8.14 Pollution and Human Health
- 8.15 Pathogens and Infectious Diseases
- 9.4 Increases in the Greenhouse Gases
- 9.5 Global Climate Change
- 9.6 Ocean Warming
- 9.7 Ocean Acidification
- 9.8 Invasive Species
- 9.9 Endangered Species
- 9.10 Human Impacts on Biodiversity
- 1.1 Introduction to Ecosystems
- 1.2 Terrestrial Biomes
- 1.3 Aquatic Biomes
- 1.4 The Carbon Cycle
- 1.5 The Nitrogen Cycle
- 1.6 The Phosphorus Cycle
- 1.7 The Hydrologic (Water) Cycle
- 1.8 Primary Productivity
- 1.9 Trophic Levels
- 1.10 Energy Flow and the 10% Rule
- 1.11 Food Chains and Food Webs
- 2.1 Introduction to Biodiversity
- 2.2 Ecosystem Services
- 2.3 Island Biogeography
- 2.4 Ecological Tolerance
- 2.5 Natural Disruptions to Ecosystems
- 2.6 Adaptations
- 2.7 Ecological Succession
- 3.1 Generalist and Specialist Species
- 3.2 K-Selected and r-Selected Species
- 3.3 Survivorship Curves
- 3.4 Carrying Capacity
- 3.5 Population Growth and Resource Availability
- 3.6 Age Structure Diagrams
- 3.7 Total Fertility Rate
- 3.8 Human Population Dynamics
- 3.9 Demographic Transition
- 4.1 Plate Tectonics
- 4.2 Soil Formation and Erosion
- 4.3 Soil Composition and Properties
- 4.4 Earth's Atmosphere
- 4.5 Global Wind Patterns
- 4.6 Watersheds
- 4.7 Solar Radiation and Earth's Seasons
- 4.8 Earth's Geography and Climate
- 4.9 El Nino and La Nina
- 5.1 The Tragedy of the Commons
- 5.2 Clearcutting
- 5.3 The Green Revolution
- 5.4 Impacts of Agricultural Practices
- 5.5 Irrigation Methods
- 5.6 Pest Control Methods
- 5.7 Meat Production Methods
- 5.8 Impacts of Overfishing
- 5.9 Impacts of Mining
- 5.10 Impacts of Urbanization
- 5.11 Ecological Footprints
- 5.12 Introduction to Sustainability
- 5.13 Methods to Reduce Urban Runoff
- 5.14 Integrated Pest Management
- 5.15 Sustainable Agriculture
- 5.16 Aquaculture
- 5.17 Sustainable Forestry
- 6.1 Renewable and Nonrenewable Resources
- 6.2 Global Energy Consumption
- 6.3 Fuel Types and Uses
- 6.4 Distribution of Natural Energy Resources
- 6.5 Fossil Fuels
- 6.6 Nuclear Power
- 6.7 Energy from Biomass
- 6.8 Solar Energy
- 6.9 Hydroelectric Power
- 6.10 Geothermal Energy
- 6.11 Hydrogen Fuel Cell
- 6.12 Wind Energy
- 6.13 Energy Conservation
- 7.1 Introduction to Air Pollution
- 7.2 Photochemical Smog
- 7.3 Thermal Inversion
- 7.4 Atmospheric CO2 and Particulates
- 7.5 Indoor Air Pollutants
- 7.6 Reduction of Air Pollutants
- 7.7 Acid Rain
- 7.8 Noise Pollution
- 8.1 Sources of Pollution
- 8.2 Human Impacts on Ecosystems
- 8.3 Endocrine Disruptors
- 8.4 Human Impacts on Wetlands and Mangroves
- 8.5 Eutrophication
- 8.6 Thermal Pollution
- 8.7 Persistent Organic Pollutants (POPs)
- 8.8 Bioaccumulation and Biomagnification
- 8.9 Solid Waste Disposal
- 8.10 Waste Reduction Methods
- 8.11 Sewage Treatment
- 8.12 Lethal Dose 50% (LD50)
- 8.13 Dose Response Curve
- 8.14 Pollution and Human Health
- 8.15 Pathogens and Infectious Diseases
- 9.1 Stratospheric Ozone Depletion
- 9.2 Reducing Ozone Depletion
- 9.3 The Greenhouse Effect
- 9.4 Increases in the Greenhouse Gases
- 9.5 Global Climate Change
- 9.6 Ocean Warming
- 9.7 Ocean Acidification
- 9.8 Invasive Species
- 9.9 Endangered Species
- 9.10 Human Impacts on Biodiversity
- Complete pack — exercise sheets + past papers
- 1 The Living World: Ecosystems — Part 1
- 1 The Living World: Ecosystems — Part 2
- 2 The Living World: Biodiversity — Part 1
- 2 The Living World: Biodiversity — Part 2
- 3 Populations — Part 1
- 3 Populations — Part 2
- 4 Earth Systems and Resources — Part 1
- 4 Earth Systems and Resources — Part 2
- 5 Land and Water Use — Part 1
- 5 Land and Water Use — Part 2
- 6 Energy Resources and Consumption — Part 1
- 6 Energy Resources and Consumption — Part 2
- 7 Atmospheric Pollution — Part 1
- 7 Atmospheric Pollution — Part 2
- 8 Aquatic and Terrestrial Pollution — Part 1
- 8 Aquatic and Terrestrial Pollution — Part 2
- 9 Global Change — Part 1
- 9 Global Change — Part 2
How to use these papers
Do the calculation questions from every released set in one block. They repeat in a narrow range of forms — dimensional analysis, percentage change, energy conversions — and once the unit handling is automatic they are the most reliable marks in the exam.
For the written parts, mark yourself on specificity. A response that names an actual pollutant, statute or mechanism scores where one that refers to "pollution" or "regulation" does not, and that gap is visible immediately when you compare your answer to the guidelines.
Build a short list of case studies you can name confidently across the units, and use the released questions to test whether you can deploy them under time rather than recall them in the abstract.