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energy resources c26ee1


2 3  

4.which are energy sources that formed over geologic time as a result of the compression and partial decomposition of plants and other organic matter .
5.is the use of energy resources in the ways that are most productive .
7.which are thin, transparent wafers made up of layers of boron and phosphorus-enriched silicon .
8.is a mixture of gases that includes 50 to 70 percent methane gas and 30 to 48 percent carbon-dioxide gas .
9.which are materals that are burned to produce heat or power .
10.while some geothermal energy escapes from earth in such small amounts that it is barely noticeable, large amounts of geothermal energy are released at other surface locations .
1.involves the global management of earth,e natural resources to meet current and future energy needs without causing environmental damage .
2.the production of two usable forms of energy, such as steam and electricity, at the same time from the same process
3.shown in most of the peat used as fuel today is several thousands of years old .
6.which can be burned in conventional gasoline engines .

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