Fossils may also consist of the marks left behind by the organism while it was alive, such as animal tracks or feces (coprolites).
These include the starting conditions, the constancy of the rate of decay, and that no material has left or entered the sample.
are the preserved remains or traces of animals, plants, and other organisms from the remote past.
The totality of fossils, both discovered and undiscovered, and their placement in fossiliferous (fossil-containing) rock formations and sedimentary layers (strata) is known as the fossil record.
Fossil water is extracted from these aquifers for many human purposes, notably, agriculture, industry, and consumption.
In arid regions, some aquifers containing available and usable water receive little to no significant recharge, effectively making groundwater in those aquifers a non-renewable resource.