What is coal energy
Answers
Answer:
Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a non renewable energy source because it takes millions of years to form.
Step-by-step explanation:
Coal contains the energy stored by plants that lived hundreds of millions of years ago in swampy forests.it is a fossil fuel
Coal is primarily used as fuel to generate electric power in the United States. In coal-fired power plants, bituminous coal, subbituminous coal, or lignite is burned. The heat produced by the combustion of the coal is used to convert water into high-pressure steam, which drives a turbine, which produces electricity.
Coal provides 30% of global primary energy. It is used to generate 41% of global electricity. It is also used to produce 68% of the world's steel and is a key source of energy in energy-intensive industries, such as aluminum and cement production.
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Answer:
coal energy is a combustible black rock which gives heat light energy .
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