How fossil fuels came into existence? briefly explain briefly.(chapter-sources of energy)
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Answer:
Fossil fuels formed from the fossilized remains of dead plants by exposure to heat and pressure in the Earth's crust over millions of years. ... Fossil fuels are non-renewable resources because they take millions of years to form, and reserves are being depleted much faster than new ones are being made
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Answer:
Decomposing plants and other organisms, buried beneath layers of sediment and rock, have taken millennia to become the carbon-rich deposits we now call fossil fuels. These non-renewable fuels, which include coal, oil, and natural gas, supply about 80 percent of the world’s energy. They provide electricity, heat, and transportation, while also feeding the processes that make a huge range of products, from steel to plastics.
When fossil fuels are burned, they release carbon dioxide and other greenhouse gases, which in turn trap heat in our atmosphere, making them the primary contributors to global warming and climate change.
Major types of fossil fuels
There are several main groups of fossil fuels, including:
Coal: Black or brown chunks of sedimentary rock that range from crumbly to relatively hard, coal began to form during the Carboniferous period about 300 to 360 million years ago, when algae and debris from vegetation in swamp forests settled deeper and deeper under layers of mud. Mined via surface or underground methods, coal supplies a third of all energy worldwide, with the top coal consumers and producers in 2018 being China, India, and the United States. Coal is classified into four categories—anthracite, bituminous, sub-bituminous, and lignite–depending on its carbon content.
Explanation:
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