The answer to this is the remains and waste products of plants, animals and other living things organisms.
Is size exclusion chromatography one of the choices?
Reflection seismology is a method of exploration geophysics that uses the principles of seismology to estimate the properties of the Earth's subsurface from reflected seismic waves
I could come up with multiple examples!
•Coal
•Natural gas
•Nuclear energy
•Petroleum
Hope this helped!
