Millions of years ago, the land was covered with swamps filled with organisms and plants
Organic Matter
Temperature
Time
PressureConditions
As they died, they sank to the bottom of swamps and oceans
In over a million years, they started decomposing over layers of sand, clay and other minerals
Different types of fossil fuels formed depending on the combination of organic matter, temperature, time and pressure conditions while decomposing
There are three types of fossil fuels formed: Coal, Oil and Natural Gas. Coal was formed from ferns, plants and trees which hardened due to pressure and heat. Oil was formed from organisms which decomposed. Natural gas was made with the same process as oil but exposed to more heat and pressure
Coal
Oil
Natural Gas
Now, fossil fuels are the world's most dominant energy source. They have variety of applications such as electricity production to transport fuels. These resources have empowered civilizations all throughout history.