Environmental Science Pretest

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Biodiversity

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The variety of life on Earth, including the variety of species, genetic diversity, and ecosystems.

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Desalination

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The process of removing salt from ocean water to make it suitable for drinking and irrigation.

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Herbivore

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An animal that feeds exclusively on plants.

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Smog

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A type of air pollution that is formed when nitrogen oxides mix with sunlight and other pollutants.

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Freshwater Percentage

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Only 3% of the Earth's water is freshwater, with the majority being saltwater.

Front

Ecosystem

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A community of living organisms interacting with their physical environment.

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Photosynthesis

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The process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

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Pollution

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The introduction of harmful substances or products into the environment.

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Renewable Resources

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Natural resources that can be replenished naturally over time, such as solar energy and wind.

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Non-renewable Resources

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Resources that do not replenish at a sustainable rate, such as fossil fuels.