Exam 18: Renewable Energy Resources

A) provide oxygen for energy-releasing chemical reactions.
B) provide a flow of negatively charged electrons to generate electricity.
C) extract hydrogen atoms from a variety of chemical substrates.
D) convert diatomic hydrogen into water.
E) convert diatomic oxygen into water.

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A wind farm in the Great Plains would be...

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A) replace the existing insulation with a higher quality product.
B) board up windows on the north, east and west sides of the house.
C) install a gas-burning fireplace in the family room.
D) pour a concrete foundation between the ground and subfloor of the home
E) dial down the water heater's thermostat to knock 3-5 percent off your energy bill

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A) charcoal
B) hydrogen
C) wood
D) animal dung
E) peat

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A) 75%
B) 50%
C) 25%
D) 10%
E) 0%

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A) windmills kill birds.
B) generation of sulfur dioxide, carbon dioxide, and nitrogen oxides.
C) degradation of an area's scenic beauty.
D) tying up large parcels of land.
E) distance to urban centers where electricity is most needed.

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This is a fuel cell, an electrochemical ...

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A) the size and weight of the fuel cell is prohibitive for use in automobiles.
B) fuel cells are expensive.
C) hydrogen is extremely volatile so safety issues must be addressed.
D) infrastructure for refueling is not in place.
E) the ability of the fuel cell to store more than a fixed amount of energy.

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