Earth Science Unit 3 Lesson 2 Quiz

Why should petroleum and natural gas resources be carefully managed?

• They are the only reliable sources of energy in the world.

• • 
    

    Applications for their use are limited.

• Technology for extracting them has a low success rate.

• They are nonrenewable resources.

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What is a mining process in which rock is stripped away to expose mineral deposits near the surface?

• subsurface mining

• placer mining

• surface mining

• undersea mining

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What does a hybrid car use?

• a photovoltaic cell and an electric motor

• an efficient gasoline engine and an electric motor

• an efficient gasoline engine and a fuel cell

• a fuel cell and a solar cell

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A design team is discussing how to remodel a city factory to make it as energy efficient as possible. Which statement describes a way the team constrains the project?

• • 
    

    They determine the cost and the time that will be necessary to make the factory energy efficient.

• They conduct a series of tests to make sure the factory does not pollute local water supplies.

• They analyze possible construction methods, such as which materials to use in the renovation.

• They identify various features that they want to incorporate into the design to minimize pollution.

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What is a concentration of mineral fragments at the bottom of a streambed called?

• hydrothermal solution

• nodule

• placer deposit

• native element

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Which of these reduces the amount of damage mining does to ecosystems?

• reclamation

• recyling

• nuclear fusion

• subsurface mining

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Which set of conditions can result in the highly profitable mining of rare-earth elements in developing countries?

• evaporation of water and a location next to a harbor

• fracking technologies and near-surface deposits

• few environmental regulations and poorly paid workers

• well-paid workers and advanced leaching chemicals

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Which statement describes a serious constraint of using wind to produce electrical energy?

• Wind speed and duration must be constant in order to generate electricity.

• Good sites for wind farms are often in areas far from where electricity is needed.

• Turbine blades cannot be replaced once they are damaged.

• Electricity generated from wind cannot be used for domestic purposes.

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Rare-earth elements are used to make what items that retain their most important characteristic at high temperatures?

• electronic wiring without electronic resistance

• extremely strong magnets

• radioactive energy sources

• carbon fibers that are brittle

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In addition to structural strength, what would be a major benefit of making the frames of cars out of carbon fibers?

• The mining of carbon fibers results in less pollution than the extraction of metals.

• The fibers would absorb pollution released from cars, resulting in cleaner air.

• At current prices, cars would be cheaper to produce.

• Cars would weigh much less, resulting in greater fuel efficiency.

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