fossiililähteistä

Fossiililähteet, or fossil fuels, are natural resources formed from the remains of ancient organisms over millions of years. These organic materials, primarily plants and animals, were subjected to immense heat and pressure deep within the Earth's crust. This process transformed them into energy-rich substances such as coal, petroleum, and natural gas.

Coal is a solid, combustible sedimentary rock formed from plant matter accumulated in ancient swamps. Petroleum, also known as crude oil, is a liquid mixture of hydrocarbons found in underground rock formations. It is refined into various fuels and products. Natural gas is a gaseous mixture, predominantly methane, often found alongside petroleum deposits or in separate reservoirs.

These fossil fuels have been a primary source of energy for human civilization, powering industries, transportation, and electricity generation. Their high energy density makes them convenient and relatively inexpensive to extract and utilize. However, the combustion of fossil fuels releases significant amounts of greenhouse gases, such as carbon dioxide, contributing to climate change. Their finite nature also raises concerns about long-term availability and resource depletion.