Ch 26

Question 1

Fuel

Answer 1

Material burned to produce heat or power

Question 2

Peat

Answer 2

Light spongy material formed in bogs and used for fuel

Question 3

Fossil fuel

Answer 3

Energy source formed over geologic time as a result of compression and partial decomposition of dead plant and animal matter. Usually considered a non renewable resource.

Question 4

Photovoltaic cell

Answer 4

Thin transparent wafer that is made up of layers of boron and phosphorus enriched silicon. Converts solar energy into electric energy

Question 5

Geothermal energy

Answer 5

Energy produced by naturally occurring steam or hot water

Question 6

Biogas

Answer 6

A mixture of gases that includes 50 to 70 percent methane and 30 to 48 percent carbon dioxide.

Question 7

Gasohol

Answer 7

Gasoline mixed with ethanol, can be burned in gasoline engines

Question 8

Energy efficiency

Answer 8

The use of energy resources in ways that are most productive

Question 9

Cogeneration

Answer 9

The production of two usable forms of energy at the same time from the same process

Question 10

Sustainable energy

Answer 10

Involves the global management of Earth’s natural resources to meet energy demands without causing environmental damage