When an animal or plant dies, usually the remains are eaten or decompose. On occasion though, they get buried by mud or sediment, and in the right conditions, they harden into fossils.
The bones or original material decay, and water or other things seep into the impression left by the original material. This water and minerals continue to dissolve the original material, replacing it, and then they harden over time.
So, right condition, pressure of the mud on top it is most needed to form a fossil
The fossil needs to be in good conditions and it has to be buried the time the organism dies.
yes not all the conditions but some.
Hard parts/quick burial
yes not all the conditions but some.
It takes several millions of years for a fossil to be created. First an animal may step in mud whichs dries over time and becomes hard. After it has that mold the conditions have to be right for it to form. If they are then it will form.
Extreme heat, extreme pressure, and millions of years.
The working conditions in the places that the workers worked at...they needed to be more sanitary.
Fossil fuels are formed from the remains of dead plants and animals, which undergo decomposition under high pressure, heat, and anaerobic conditions over millions of years. These three components - organic matter, heat, and pressure - are essential in the formation of fossil fuels such as coal, oil, and natural gas.
More than just two conditions are needed, but the two most important ones are convective instability and wind shear.
It typically takes thousands to millions of years for a fossil to form, as the process involves the gradual replacement of organic material with minerals. However, under exceptional conditions such as rapid burial or extreme environmental conditions, fossils can form more quickly in as little as a few thousand years.
Helix fossil
past environments