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High School Environmental Science Fundamentals

Environmental Science

A foundational quiz covering key concepts in environmental science including ecology, atmosphere, and sustainability.

science ecology sustainability

12 Questions Easy Ages 14+ Apr 2, 2026

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About this Study Set

This study set covers Environmental Science through 12 practice questions. A foundational quiz covering key concepts in environmental science including ecology, atmosphere, and sustainability. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 12 questions from the High School Environmental Science Fundamentals study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which gas makes up the highest percentage of Earth's atmosphere?

A Oxygen
B Carbon dioxide
C Nitrogen
D Argon

2 What is the primary source of energy for almost all ecosystems on Earth?

A Geothermal heat
B Solar radiation
C Wind power
D Tidal energy

3 Which layer of the atmosphere contains the ozone layer that protects us from UV radiation?

A Troposphere
B Stratosphere
C Mesosphere
D Thermosphere

4 What term describes the variety of all living organisms in a specific area?

A Biomass
B Biodiversity
C Population density
D Succession

5 Which of the following is considered a non-renewable energy source?

A Solar
B Wind
C Coal
D Geothermal

6 What process do plants use to convert sunlight into chemical energy?

A Respiration
B Transpiration
C Photosynthesis
D Decomposition

7 Which biome is characterized by low rainfall and extreme temperature fluctuations?

A Desert
B Tropical Rainforest
C Tundra
D Temperate Forest

8 What is the main byproduct of burning fossil fuels that contributes to the greenhouse effect?

A Oxygen
B Carbon dioxide
C Nitrogen
D Hydrogen

9 Which of the following represents an abiotic factor in an ecosystem?

A Fungi
B Bacteria
C Sunlight
D Plants

10 What is the process where water moves from the Earth's surface into the atmosphere as vapor?

A Precipitation
B Condensation
C Evaporation
D Infiltration

11 Which level of the food chain consists of organisms that consume other organisms?

A Producers
B Decomposers
C Consumers
D Autotrophs

12 What is the primary cause of ocean acidification?

A Increased oil spills
B Absorption of excess carbon dioxide
C Overfishing
D Plastic pollution

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