3 Environmental Science Semester 1 final exam

Front

What is biomagnification?

Back

The process by which toxins become more concentrated at higher levels in a food chain.

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What causes ocean acidification?

Back

Increased Carbon Dioxide levels.

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What is a keystone species?

Back

A species that has a disproportionately large effect on its environment relative to its abundance.

Front

Why is nonpoint source pollution more challenging to regulate?

Back

Nonpoint source pollution comes from multiple, widespread locations.

Front

What is an anthropogenic cause of water pollution?

Back

Agricultural runoff from a farm.

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Define point source pollution.

Back

Pollution that originates from a single, identifiable source.

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What is the greenhouse effect?

Back

The warming of Earth's surface due to the trapping of heat by greenhouse gases.

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What are renewable resources?

Back

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

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What is biodiversity?

Back

The variety of life in a particular habitat or ecosystem.

Front

What is the significance of wetlands?

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Wetlands act as natural water filters and provide habitat for many species.