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Renewable Resources
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~a natural resource that can be replaced at the same rate at which the resource is consumed.
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Geothermal energy
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~energy produced by heat withing Earth.
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Solar Energy
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~energy received from the sun in the form of radiation
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Passive System
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~collecting solar energy without using moving parts.
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Active system
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~collecting solar energy by using solar collectors.
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Solar Collector
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~object that collects energy from son. One type is a box that has a glass top.
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Hydroelectric Energy
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~electrical energy produced by the flow of water.
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Biomass
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~plant material, manure,or any other organic matter that is used as an energy source.
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Wind
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~movement of air over Earth's surface.
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Wind Farms
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~have hundreds of giant wind turbines that can produce enough energy to meet electricity needs for an entire community.
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