| http://www.w3.org/ns/prov#value | - . ??? ??? ??? alternative Solar, wind, and geothermal energy are called __________ sources of energy. ??? ??? ??? inexhaustible The Sun is an example of an __________ resource because it cannot be used up by humans. ??? ??? ??? photovoltaic Solar energy is created using __________ cells that transforms radiant energy directly into electrical energy. ??? ??? ??? geothermal The heat created by the i
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