Fossil fuels are natural resources that are formed from the remains of ancient plants and animals. They are composed of hydrocarbons, which are organic compounds made of carbon and hydrogen atoms. The three main types of fossil fuels are coal, oil, and natural gas.
Fossil fuels are formed from the decomposition and transformation of organic matter over millions of years. Coal is formed from the remains of ancient plants that were buried and subjected to heat and pressure. Oil and natural gas are formed from the remains of marine organisms that were buried in sediments and transformed by heat and pressure.
Fossil fuels are extracted from the earth through mining (coal), drilling (oil), and fracking (natural gas). Once extracted, they undergo refining processes to remove impurities and convert them into usable forms such as gasoline, diesel, and jet fuel.
The burning of fossil fuels releases carbon dioxide and other greenhouse gases into the atmosphere, contributing to climate change. Their extraction and use also lead to air and water pollution, habitat destruction, and other environmental impacts.