Wood is commonly used as a fuel in the forms of
Wood is often used in ___________ developed countries due to easy accessibility.
______________________ is partially decomposed organic material that can be burned for fuel.
When talking about types of coal from least amount of heat and carbon content to most heat and carbon, put these in order.
Peat
Bituminous coal
Anthracite
Lignite
Natural gas is made up mostly of
What makes up tar sands? (ALL BUT 1)
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Use the PPT to fill in the years when changes happened to affect average MPG.
Using the graph, answer the questions.
Fuel economy fluctuates in response to (ALL BUT 1)
Electricity itself is "clean" (no polutants); __________ of electricity is not
What is a network of interconnected transmission lines that connect power plants together and link them with end users called?
The process of cogeneration combines ____________ & __________ to generate electricity and produce heat
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