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What is geothermal energy?

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Geothermal energy is the heat that comes from the sub-surface of the earth. It is contained in the rocks and fluids beneath the earth's crust and can be found as far down to the hot molten rock, magma.

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How is geothermal energy produced?

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Geothermal energy is produced by heat within the earth.

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What is active solar heating?

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Active solar heating is a system that uses mechanical devices, such as pumps and fans, to distribute heat.

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What is passive solar heating?

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Passive solar heating is a design approach that captures sunlight for heating without the use of mechanical devices.

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What is the primary byproduct of hydrogen power?

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The primary byproduct of hydrogen power is water.

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What is tidal energy?

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Tidal energy is a form of renewable energy that is generated by the gravitational pull of the moon and sun, which causes the rise and fall of sea levels.

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How does a turbine work in tidal energy generation?

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A turbine captures the motion of water with the tides to generate electricity.

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What is biomass energy?

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Biomass energy is produced from organic materials, such as plants and animal waste, which can be burned or converted into biofuels.

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What distinguishes renewable energy from non-renewable energy?

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Renewable energy comes from sources that are naturally replenished, such as sunlight, wind, and water, while non-renewable energy comes from sources that can be depleted, such as fossil fuels.

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What are solar panels used for?

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Solar panels are used to convert sunlight into electricity.