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What is nonrenewable energy?
Non-renewable energy is energy from fossil fuels (coal, crude oil, natural gas) and uranium. Fossil fuels are mainly made up of Carbon. It is believed that fossil fuels were formed over 300 million years ago, when the earth was a lot different in its landscape. It had swampy forests and very shallow seas. This time is referred to as 'Carboniferous Period'
Non-renewable resources can generally be separated into two main categories; fossil fuels and nuclear fuels.
Fossil fuels are derived from organic matter which has been trapped between layers of sediments within the Earth for millions of years. Examples are crude ol/petroleum, gas and coal
The other form of non-renewable resource used to produce energy, nuclear fuels, is primarily obtained through the mining and refining of uranium ore.