the energy released by a fission or fusion reaction; the binding energy of atomic nucleaus
the energy released when a chemical compound reacts to produce new compounds
the energy received by the earth from the sun in the form of radiation
the use of a windmill to drive an electric generator
electrical energy produced by falling water
organic matter that can be a source of energy
a mixture of gasoline and alcohol that is used as a fuel
the energy produced by heat within the Earth
any natural material that is used by humans, such as water, petroleum, minerals
a natural resource that can be replaced at the same rate at which the resource is consumed
a resource that forms at a rate that is much slower than the rate at which consumed
the process of recovering valuable or useful materials from waste or scrap
a nonrenewable energy resource formed from the remains of organisms that lived long ago (oil, coal)
a liquid mixture of complex hydrocarbon compounds
a mixture of gaseous hydrocarbons located under the surface of the Earth, often near petroleum deposits
a fossil fuel that forms underground from partially decomposed plant material
precipitation that contains a high concentration of acids, often because of the pollution of atmosphere
photochemical haze that forms when sunlight acts on industrial pollutants and burning fuels
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