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What is a natural resource?

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A natural resource is a material or substance that occurs in nature and can be used for economic gain or to support life.

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What are renewable resources?

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Renewable resources are natural resources that can be replenished naturally over time, such as trees, sunlight, and wind.

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What are nonrenewable resources?

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Nonrenewable resources are natural resources that cannot be replenished in a short period of time, such as coal, oil, and natural gas.

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What is petroleum?

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Petroleum is a nonrenewable natural resource that is used to produce gasoline and other fuels.

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What is coal?

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Coal is a nonrenewable energy source that is a black or brownish-black sedimentary rock used for heating and electricity generation.

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What is geothermal energy?

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Geothermal energy is energy derived from the heat within the Earth.

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What is biomass?

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Biomass is organic material that comes from plants and animals, used as a renewable energy source.

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What is solar energy?

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Solar energy is energy from the sun that can be converted into electricity or heat.

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What are photovoltaic cells?

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Photovoltaic cells are devices that convert sunlight directly into electricity.

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What is hydropower?

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Hydropower is energy derived from the movement of water, typically used to generate electricity.