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Things that cannot be replaced within a reasonable amount of time after being taken out.

Energy sources that are nonrenewable and commonly used are: petroleum, coal, diesel, and natural gas.

Nuclear fuel is also non-renewable, and made by using uranium- which once taken out of the earth takes a very long time to be re-made.

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13y ago
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8y ago

A non-renewable source of energy once depleted can never be renewed or replaced (or may take millions of years to be replenished).

  • Coal
  • Lignite
  • Oil
  • Natural gas
  • Shale oil
  • Uranium (Uranium235)

They are all fossil fuels (except uranium) and non-renewable. When you use them, they're gone.

Fossil fuels were formed from organic matter (plants and animals) which were buried millions of years ago. In time, the pressure of the massive weight of rock and mud which covered the organic matter created heat, which changed this matter over a period of several hundred million years to oil (remains of ancient marine organisms), coal (remains of ancient swamps and forests), and natural gas. We use these energy sources as fuel; therefore, they are called fossil fuels.

A:An example of non-renewable energy is petroleum. Once it has been refined into gasoline and consumed by a vehicle it can no longer be used.

Another example of non-renewable energy is coal, which, once you take out of the ground and burn, is simply gone.

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6y ago

Nonrenewable energy is derived from any source that you cannot replace. This would include:

  • Fossil fuels (coal, oil, natural gas) or
  • Radioactive materials or fissionables (uranium, thorium etc.).

Some energy is technically nonrenewable (e.g. geothermal - as it requires the removal of heat from the Earth's core) but are for all purposes is not exhaustible due the amount available.The nonrenewable energy usually of concern are therefor the non-renewable/exhaustible sources.

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12y ago

Nonrenewable energy resources are those you cannot replace. This usually refers to fossil fuels: coal, petroleum and its derivatives, and natural gas.

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7y ago

Coal oil and natural gas are non-renewable energy sources in that they take millions of years to form in Nature. They are all called Fossil fuels.

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14y ago

Anything that takes a very, very long time to re-appear, like coal or petroleum (oil), believed to have formed during millions of years.

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10y ago

Non renewable energy sources are coal, fossil fuels, natural gas, and petroleum.

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14y ago

Anything that takes a long, long time to get renewed. Petroleum (oil), and coal, for example.

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6y ago

Fossil fuels

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Q: What energy sources are classified as nonrenewable?
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