NEET BIOLOGY

Detailed explanation-1: -Petroleum, also called crude oil, is a fossil fuel. Like coal and natural gas, petroleum was formed from the remains of ancient marine organisms, such as plants, algae, and bacteria.

Detailed explanation-2: -Fossil fuels are made from decomposing plants and animals. These fuels are found in the Earth’s crust and contain carbon and hydrogen, which can be burned for energy. Coal, oil, and natural gas are examples of fossil fuels.

Detailed explanation-3: -Over millions of years, heat and pressure from Earth’s crust decomposed these organisms into one of the three main kinds of fuel: oil (also called petroleum), natural gas, or coal. These fuels are called fossil fuels, since they are formed from the remains of dead animals and plants.

Detailed explanation-4: -Natural Gas Fuel Basics. Like fossil-derived natural gas, renewable natural gas-which is produced from decaying organic materials-must be compressed or liquefied for use as a transportation fuel. Natural gas is an odorless, gaseous mixture of hydrocarbons-predominantly made up of methane (CH4).