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Pooja R. Jain
Solid fuels are materials that exist in a solid state and can be used as a source of energy. Here are two examples of solid fuels:
Coal: Coal is one of the most widely used solid fuels. It is a combustible black or brownish-black sedimentary rock primarily composed of carbon, along with various other elements. Coal has been a significant source of energy for centuries and is used for electricity generation, heating, and industrial processes.
Wood: Wood is a traditional and renewable solid fuel. It has been used for heating and cooking for thousands of years. Different types of wood, such as hardwood and softwood, are burned to produce heat. Wood pellets and logs are commonly used in residential stoves and fireplaces for space heating. Wood is considered a renewable resource because new trees can be planted to replace those that are harvested for fuel.
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