“fine sediment buries the organism, and pressure eventually squeezes out the liquid and gas parts of the remains, leaving only a thin layer of carbon.” what process is being described here?

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.