Env. Science Ch. 18 - Renewable Resources

Habitat loss, soil erosion, and air pollution are disadvantages of which renewable energy source?

• solar

• wind

• biomass fuel

• moving water

Which of the following describes new wind turbines?

• cost-effective

• take up a large amount of space

• take a year to build

• cannot generate much electricity

Renewable energy is energy from sources that

• are constantly being formed

• will take years to deplete

• humans can manufacture

• were once living organisms

Which of these is an example of how biomass fuel is currently being used?

• Biogas digesters ferment manure and produce methane

• Dung-fire power stations produce electricity

• Ethanol from fermenting corn is added to gasoline

• All of the above

A geothermal power plant can be used to generate electricity

• anywhere in the US

• in areas where deposits of water are heated inside the earth

• in areas where the ground stays warm throughout the year

• All of the above

A hybrid car uses

• an efficient gasoline engine and an electric motor

• an efficient gasoline engine and a fuel cell

• a fuel cell and a solar cell

• a photovoltaic cell and an electric motor

Compared to washing clothes in warm water, washing water in cold water uses

• much more energy

• the same amount of energy

• much less energy

• a little more energy

Hydrogen could be used as a fuel source in the future because it

• is abundant

• can be burned as a fuel

• is used in fuel cells

• All of the above

Ocean Thermal Energy Conversion works because water boils at low temperature when

• in a high pressure chamber

• cooled in a vacuum chamber

• under low pressure in a vacuum chamber

• pumped from the ocean

Which of the following is an example of cogeneration?

• driving a fuel efficient car

• using the waste heat from a furnace to power a steam turbine

• using ocean thermal energy conversion to run a turbine

• using tidal power to generate electricity