Ess3.2

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

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

Tags

NGSS.HS-PS3-3

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

• hydrothermal solution

• nodule

• placer deposit

• native element

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

• reclamation

• recyling

• nuclear fusion

• subsurface mining

Tags

NGSS.HS-ESS3-4

NGSS.HS-LS2-7

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

Tags

NGSS.HS-ESS3-2

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

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.

Tags

NGSS.HS-ESS3-4

NGSS.HS-ETS1-3