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What are renewable resources?

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Renewable resources are things that we can use over and over again.

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What is a disadvantage of solar energy?

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One disadvantage to solar energy is that it's not effective in certain weather.

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What is nonrenewable energy?

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Energy that cannot be replaced in our lifetime.

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What is biomass?

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Biomass is any organic matter that can be used as an energy source such as wood or crops.

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What is solar energy?

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Solar energy is energy from the sun.

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What is coal?

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Coal is a solid black fossil fuel that formed from the remains of plants that lived and died millions of years ago.

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What is geothermal energy?

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Geothermal energy is energy derived from the heat stored beneath the Earth's surface.

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What is wind energy?

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Wind energy is energy obtained from the movement of air.

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What is nuclear energy?

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Nuclear energy is the energy released during nuclear fission or fusion.

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What is alternative energy?

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Alternative energy refers to energy sources that are not based on fossil fuels.