Chapter 18 Science

Which of the following is NOT a renewable source of energy?

• wind

• sunlight

• coal

• wood

Energy produced from material that comes from living organisms is known as

• geothermal energy

• biomass energy

• electrical energy

• wood energy

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Corn can be a source of

• ethanol

• ground source heat

• hydropower

• photovoltaic power

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Geothermal energy is obtained by harnessing

• sunlight

• wind energy

• energy from tides

• hot underground water or steam

The run-of-the-river approach to generating hydroelectric power

• requires constructing of a dam

• takes advantage of a river's natural flow.

• causes more extensive habitat destruction than the reservoir storage method does

• involves burning of fossil fuels

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Concentrating solar power uses

• a building's design to capture solar energy

• a heat-absorbing metal plate to capture solar energy

• passive solar heating techniques to generate electricity

• mirrors that focus sunlight to generate electricity.

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Offshore wind turbines are useful because

• they do not need gearboxes

• they are easier to build than wind turbines on land

• average wind speeds are greater over water than land

• they do not require a generator to produce electricity

Which of the following is NOT an advantage of hydrogen as a source of energy?

• It usually produces few pollutants

• Hydrogen is the most abundant element in the universe

• It can be stored and transported.

• It is inexpensive to produce.

Tidal energy works best in places where the differences in height between low and high tides are small.

• True

• False

Active solar heating uses devices such as pumps to move heat derived from the sun.

• True

• False

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