AP BIOLOGY

Detailed explanation-1: -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-2: -Fossil energy sources, including oil, coal and natural gas, are non-renewable resources that formed when prehistoric plants and animals died and were gradually buried by layers of rock.

Detailed explanation-3: -Fossil fuels consist of deposits of once living organisms. The organic matter takes centuries to form. Fossil fuels principally consist of carbon and hydrogen bonds. There are three types of fossil fuels which can all be used for energy provision; coal, oil and natural gas.

Detailed explanation-4: -Coal, crude oil, and natural gas are all considered fossil fuels because they were formed from the fossilized, buried remains of plants and animals that lived millions of years ago. Because of their origins, fossil fuels have a high carbon content.

Detailed explanation-5: -Today, humans are extracting the three primary fossil fuels-coal, oil, and natural gas-to provide energy for a world population that has exceeded 7 billion. Fossil fuels are made of hydrocarbons energy rich organic carbon compounds made of carbon and hydrogen atoms. .