They do, it does take some time though, and to "rot" there has to be enough humidity and airborne microbes.
If the plants and animals got covered relatively quickly by mud from a flooding river or ashes from a volcano then they would not have had time to rot.
If you mean 'Why didn't the organisms rot and dissapate instead of forming fossil fuels?' Fossil fuels occur only on the bottom of the deep ocean; where there is a lot of pressure which crushes it to the point that it cannot break down. Instead it foms a compact 'liquid'.
They did rot, just not all the way. the shells or hard exoskeletons were left over This was done through anaerobic decomposition (or with no oxygen). The shells and exoskeletons mixed with mud and were buried under sediment. then about 7km down in the earths lithosphere the were subjected to just the right temperature and pressure, and voila! coal was formed!
'Because they were buried in sedimentary rock and they were fossilized over a period of time and preserved.'
what plants or animals
Most did. We're digging up those that got trapped in anaerobic environments (like underwater).
Organic matter rots and non-organic matter does not. Fossils do not rot because they are not organic matter, they are an imprint of something that lived.
Plants and animals did not rot away at the time that fossil fuels were being made because of lack of oxygen.
no they get flushed down a toilet
Don't now
Nb
Tiny remains of animals and plants in streams come from the mountains. When it rains, these remains are washed down the mountains toward the streams.
coal
If all rice plants were to die then it would affect many animals. If rice plants were wiped out then the local ecosystem would be devastated.
Scavenger is the scientific name of animals that feed on dead animals and plants. There is a huge number of scavengers like vultures, beetles, and raccoons.
Because they were getting decomposed by the microorganisms in the air.
all the plants and animals died
Asteroid Impact : Plants and organisms that performed photosynthesis died, and many animals that depended on those plants for food died, too Volcanic Eruptions : The volcanic dust blocked the sun's energy from reaching Earth's surface, causing plants, and animals to die.
they grew crops and gathered berries and they ate smaller animals because big animals died from the food it had somthing in the plants,and the climate changed.
They died.
They stay on the ground and eventually decay.
Nb
Tiny remains of animals and plants in streams come from the mountains. When it rains, these remains are washed down the mountains toward the streams.
they fell asleep and died to a hockey rink
Plants are the building blocks of life. Without plants, animals like vegetarians would starve and the animals that eat the vegetarians would starve and so on. The whole animal kingdom is dependent on plants. So if say plants some how all died, we would be in a lot of trouble.
Settlers took plants and animals with them to America and brought back American plants and animals
coal