Zooplankton is the answer you're after I believe.
oil
Coal
A resource formed mainly from the remains of microscopic-sized marine organisms buried beneath the ground petroleum. The kind of energy produced when billions of atomic nuclei from uranium are split apart in a fission reaction is nuclear.
There is oxygen in the ground
Soil food web organisms range from the microscopic to the very visible. They also range from bugs to invertebrates to mammals. Examples include the microscopic fungi, nitrogen fixing bacteria and nematodes, and protozoa. They also include the ground burrowing beavers, ground hogs, and moles and voles. And they include the ground nesting giant cicada killers. And they include the ground tunneling earthworms, and the scavenging ground beetles
A system of installation wiring in which cables are buried in soil, either directly or in a wiring enclosure beneath the surface of the ground in accordance with the appropriate requirements of this standard.
The Ground Beneath Her Feet was created in 1999-04.
The Ground Beneath Her Feet has 592 pages.
he was buried in the ground
The hedgehog went beneath the ground. - yes :)
A Flame to the Ground Beneath was created on 2003-06-24.
The ISBN of The Ground Beneath Her Feet is 0-224-04419-2.