Human Impacts (Ch. 7) Quiz

A city is considering switching from coal power to solar energy. Which of the following best evaluates both the costs and benefits of this transition?

• Solar energy is more expensive to install but reduces air pollution and long-term energy costs.

• Coal power is cleaner than solar energy and costs less to maintain.

• Solar energy increases greenhouse gas emissions but is cheaper to install.

• Coal power and solar energy have the same environmental impact.

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Which of the following is an example of a nonrenewable resource?

• Wind

• Solar energy

• Natural gas

• Geothermal energy

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A forest ecosystem loses several species after a wildfire. What is a likely consequence of this loss of biodiversity?

• Increased stability of the ecosystem

• Decreased resilience to future disturbances

• No change in ecosystem function

• Immediate recovery of all species

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After a hurricane, an island’s native bird population declines sharply. Using reasoning, explain how this loss of biodiversity could affect the island’s food web.

• The loss may disrupt predator-prey relationships, leading to overpopulation of some species and decline of others.

• The food web will remain unchanged.

• All species will go extinct immediately.

• Only plant species will be affected.

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Which human activity is most likely to decrease the sustainability of an environmental system?

• Recycling materials

• Overfishing in the ocean

• Planting native trees

• Using public transportation

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A community wants to reduce its carbon footprint. Predict the impact if most residents switch from gasoline cars to electric vehicles powered by renewable energy.

• Greenhouse gas emissions will likely decrease, improving air quality and sustainability.

• Water pollution will increase dramatically.

• Fossil fuel use will increase.

• There will be no change in environmental impact.

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Which of the following is a benefit of using renewable resources over nonrenewable resources?

• Renewable resources can be replenished naturally and reduce environmental impact.

• Nonrenewable resources are always less expensive.

• Renewable resources increase greenhouse gas emissions.

• Nonrenewable resources never run out.

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A city is evaluating whether to protect a wetland or develop it for housing. Using evidence, which argument supports wetland protection?

• Wetlands provide flood control, water purification, and habitat for diverse species, which outweigh short-term economic gains from development.

• Wetlands have no ecological value.

• Housing development will increase biodiversity.

• Wetlands are easily replaced by artificial ponds.

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Which event is most likely to cause a sudden loss of biodiversity in an ecosystem?

• Introduction of a non-native species

• Seasonal rainfall

• Natural succession

• Regular migration patterns

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A region experiences a prolonged drought. Strategically, how might this climate change event impact biodiversity and ecosystem services?

• Drought can reduce water availability, leading to species loss and decreased ecosystem services like crop production and water purification.

• Drought increases biodiversity.

• Drought has no effect on ecosystem services.

• Drought only affects non-living components.

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