20. ___________ energy uses natural sources of energy such as the sun, wind, or water for power and fuel,
rather than oil, coal, or nuclear power.
A. Alternative B. Solar C. Hydroelectricity D. Electricity
20. ___________ energy uses natural sources of energy such as the sun, wind, or water for power and fuel,
rather than oil, coal, or nuclear power.
A. Alternative B. Solar C. Hydroelectricity D. Electricity
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