Fossil fuels come from decayed plants and animals. Oil typically comes from dead marine life. Coal comes from decaying plants. So, before they are transformed into fuels (which can take millions of years), the decaying organic material is likely to be brown. Of course, before they die, the plants and animal look just like they do today.
The pressure is high and the temperature is also very high
Yes, although the fossil record for the precambrian period is scarce. See related link.
Fossils are the preserved remains or traces of plants and animals that lived in the past. Through a process called petrification, minerals replace the organic material in the remains, turning them into rock-like structures over time.
Solar energy (heat and light from the sun) grew the plants which fed the animals. The dead plants and animals, under immense pressure and heat, gradually turned into coal, oil and natural gas, the fossil fuels. When the fuel is burnt, that energy is released.
Most animals that became fossil fuels (coal, oil and natural gas) were tiny plankton in the oceans. Coal was made from larger vegetation and possibly animals like archosaurs, the reptile ancestors of the dinosaurs.
fossil fuels r like decayed plants and animals (so FOSSILS) from 100 million years ago. they get turned into coal and oil and then drilled out.
Fossil fuels (coal, oil and natural gas) are formed from the remains of plants and animals. Three hundred million years' of pressure turned the organic matter into fuel.
Fossils are the remains of plants and animals that have been turned to stone.
Dead plants turned into oil :) hope this helped.
Petrification =D
all sea animals that died eventually turned into oil.
The Sun passed solar energy to the plants, and plants were eaten by animals. When the plants and animals died and started decaying, some of them got buried deep under the ground for many millions of years, where they turned into fossil fuels like coal, gas and crude oil. We burn that coal and oil to turn them into heat energy. Heat energy is transformed in power plants into electricity that goes through the power lines to our homes, then powers our televisions, computers, etc.