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High School Science · Environment · Systems and Sustainability

Environmental Science Practice Test

Build high school Environmental Science skills with original questions on ecosystems, biodiversity, resources, pollution, climate change, data, policy, and sustainable solutions.

Environmental Science practice sets

This high school Environmental Science practice hub includes five short sets of 10 original questions. The sets cover ecosystems and biodiversity, natural resources and sustainability, pollution and environmental health, climate and global systems, and environmental data, policy, and solutions.

Course scope and standards

The course connects living systems with Earth materials, natural resources, hazards, pollution, climate change, human health, biodiversity, conservation, and environmental decision-making. Expectations vary by state, school, and course sequence. The topic structure is a supplemental study map to the high-school Earth and Human Activity expectations in the Next Generation Science Standards HS-ESS3, including resource management, pollution, climate evidence, systems modeling, and solution tradeoffs.

Skills covered

  • Explain ecosystem structure, energy flow, biodiversity, population limits, succession, and species interactions
  • Evaluate renewable and nonrenewable resources, water and soil systems, agriculture, fisheries, and sustainability
  • Connect pollution sources with exposure, health effects, food webs, waste, and ecosystem response
  • Interpret climate evidence, carbon-cycle changes, feedbacks, models, mitigation, and adaptation
  • Analyze environmental data and compare solutions using evidence, constraints, tradeoffs, equity, and long-term system effects

How to use these practice tests

Start with the set that matches your current unit. For missed questions, identify the system boundary, the cause and effect, and the evidence supporting the answer. When a solution is proposed, compare its effectiveness, cost, safety, environmental impact, uncertainty, and effects on different communities.

These are original supplemental practice questions. They are not an official state assessment, school examination, NGSS test, AP Environmental Science exam, or test-provider assessment. Confirm your course standards, assessment blueprint, laboratory expectations, and accommodations with your teacher or school.

For more study options, visit High School Course Tests, Earth and Space Science Tests, Biology Tests, or Pomodoro.

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Environmental Science Practice Questions

A 10-question high school Environmental Science practice set on pollution, waste, and environmental health, with answers and explanations.

Choose the best answer. Consider system relationships, evidence, tradeoffs, and data limitations, then review the explanation after each response.

10 Questions
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1. QuestionMultiple choice

What is a point-source pollutant release?

Please select an answer first.

Correct answer: A

The correct answer is A release that comes from a single identifiable location such as a pipe or discharge outlet.

  1. Identify the environmental system: Determine whether the prompt concerns ecosystems, resources, pollution, climate, human impacts, policy, or environmental data.
  2. Connect the evidence: Point sources can be traced to a defined outlet, unlike diffuse nonpoint sources.
  3. Check the tradeoff or relationship: Compare the answer with the stated data, system boundary, cause, effect, or solution constraint before choosing.

Point sources can be traced to a defined outlet, unlike diffuse nonpoint sources.

2. QuestionMultiple choice

What can cause eutrophication in a lake?

Please select an answer first.

Correct answer: B

The correct answer is Excess nutrients can stimulate algal growth, followed by decomposition and oxygen depletion.

  1. Identify the environmental system: Determine whether the prompt concerns ecosystems, resources, pollution, climate, human impacts, policy, or environmental data.
  2. Connect the evidence: Nitrogen or phosphorus enrichment can create blooms; decomposition can lower dissolved oxygen and harm aquatic life.
  3. Check the tradeoff or relationship: Compare the answer with the stated data, system boundary, cause, effect, or solution constraint before choosing.

Nitrogen or phosphorus enrichment can create blooms; decomposition can lower dissolved oxygen and harm aquatic life.

3. QuestionMultiple choice

What is bioaccumulation?

Please select an answer first.

Correct answer: C

The correct answer is The buildup of a substance in an organism when uptake exceeds the rate of removal.

  1. Identify the environmental system: Determine whether the prompt concerns ecosystems, resources, pollution, climate, human impacts, policy, or environmental data.
  2. Connect the evidence: Persistent substances can accumulate in tissues over time when organisms absorb them faster than they eliminate them.
  3. Check the tradeoff or relationship: Compare the answer with the stated data, system boundary, cause, effect, or solution constraint before choosing.

Persistent substances can accumulate in tissues over time when organisms absorb them faster than they eliminate them.

4. QuestionMultiple choice

What is biomagnification?

Please select an answer first.

Correct answer: D

The correct answer is The concentration of a persistent substance can increase at higher trophic levels in a food chain.

  1. Identify the environmental system: Determine whether the prompt concerns ecosystems, resources, pollution, climate, human impacts, policy, or environmental data.
  2. Connect the evidence: Predators may receive contaminants from many prey organisms, increasing concentration across trophic levels.
  3. Check the tradeoff or relationship: Compare the answer with the stated data, system boundary, cause, effect, or solution constraint before choosing.

Predators may receive contaminants from many prey organisms, increasing concentration across trophic levels.

5. QuestionMultiple choice

What is acid deposition associated with?

Please select an answer first.

Correct answer: A

The correct answer is Sulfur and nitrogen compounds can react in the atmosphere and return in acidic precipitation or particles.

  1. Identify the environmental system: Determine whether the prompt concerns ecosystems, resources, pollution, climate, human impacts, policy, or environmental data.
  2. Connect the evidence: Emissions from combustion can form compounds that contribute to acid deposition and ecosystem effects.
  3. Check the tradeoff or relationship: Compare the answer with the stated data, system boundary, cause, effect, or solution constraint before choosing.

Emissions from combustion can form compounds that contribute to acid deposition and ecosystem effects.

6. QuestionMultiple choice

Why are particulate pollutants a health concern?

Please select an answer first.

Correct answer: B

The correct answer is Small particles can enter the respiratory system and affect lung or cardiovascular health.

  1. Identify the environmental system: Determine whether the prompt concerns ecosystems, resources, pollution, climate, human impacts, policy, or environmental data.
  2. Connect the evidence: Particle size and composition influence where particles deposit and how they affect the body.
  3. Check the tradeoff or relationship: Compare the answer with the stated data, system boundary, cause, effect, or solution constraint before choosing.

Particle size and composition influence where particles deposit and how they affect the body.

7. QuestionMultiple choice

What is a benefit of wastewater treatment?

Please select an answer first.

Correct answer: C

The correct answer is It removes or reduces contaminants before treated water is released or reused.

  1. Identify the environmental system: Determine whether the prompt concerns ecosystems, resources, pollution, climate, human impacts, policy, or environmental data.
  2. Connect the evidence: Treatment reduces solids, pathogens, nutrients, and other pollutants according to the treatment process.
  3. Check the tradeoff or relationship: Compare the answer with the stated data, system boundary, cause, effect, or solution constraint before choosing.

Treatment reduces solids, pathogens, nutrients, and other pollutants according to the treatment process.

8. QuestionMultiple choice

Why is waste reduction often preferred to disposal?

Please select an answer first.

Correct answer: D

The correct answer is Preventing waste avoids impacts associated with extraction, manufacturing, transport, and disposal.

  1. Identify the environmental system: Determine whether the prompt concerns ecosystems, resources, pollution, climate, human impacts, policy, or environmental data.
  2. Connect the evidence: Reduce and reuse strategies can lower material and energy demand before recycling or disposal is considered.
  3. Check the tradeoff or relationship: Compare the answer with the stated data, system boundary, cause, effect, or solution constraint before choosing.

Reduce and reuse strategies can lower material and energy demand before recycling or disposal is considered.

9. QuestionMultiple choice

What is a nonpoint source of water pollution?

Please select an answer first.

Correct answer: A

The correct answer is Pollution carried from broad or diffuse areas by runoff rather than one identifiable outlet.

  1. Identify the environmental system: Determine whether the prompt concerns ecosystems, resources, pollution, climate, human impacts, policy, or environmental data.
  2. Connect the evidence: Urban and agricultural runoff can carry pollutants from many surfaces into streams and lakes.
  3. Check the tradeoff or relationship: Compare the answer with the stated data, system boundary, cause, effect, or solution constraint before choosing.

Urban and agricultural runoff can carry pollutants from many surfaces into streams and lakes.

10. QuestionMultiple choice

Which evidence best evaluates whether a pollution-control policy works?

Please select an answer first.

Correct answer: B

The correct answer is Comparable measurements before and after implementation, with controls or reference locations when possible.

  1. Identify the environmental system: Determine whether the prompt concerns ecosystems, resources, pollution, climate, human impacts, policy, or environmental data.
  2. Connect the evidence: Policy evaluation needs a clear baseline, relevant indicators, consistent methods, and an appropriate comparison.
  3. Check the tradeoff or relationship: Compare the answer with the stated data, system boundary, cause, effect, or solution constraint before choosing.

Policy evaluation needs a clear baseline, relevant indicators, consistent methods, and an appropriate comparison.

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Frequently asked questions about Environmental Science Practice Tests

What do these Environmental Science practice tests cover?

They cover ecosystems, biodiversity, resources, sustainability, pollution, environmental health, climate change, data, policy, conservation, and solution design.

Are these questions aligned to one state exam?

No. They are a supplemental high school course resource. State grade levels, course names, standards, and assessment blueprints can differ.

How many questions are included?

The page includes five mini tests with 10 questions each, for 50 Environmental Science questions in total.

How should I compare environmental solutions?

Use stated criteria and constraints, examine evidence and uncertainty, and consider environmental, economic, safety, social, and long-term system effects.

Are these official NGSS or AP Environmental Science questions?

No. They are original supplemental questions. Use your school materials and the current official standards or assessment documents for required preparation.