Petroleum is a fossil fuel, which is obtained from the remains of dead plants and animals.
Petroleum is a mixture of various useful substances. In the process of formation of petroleum, dead wildlife, vegetation and other organic substances are buried deep inside the earth and it takes millions for decomposition and to got mixed with sand and silt. Due to the raised temperature and pressure for years, organic substances are converted into petroleum oil.
Explore more such questions and answers at BYJU’S.