rapid burial
absence or limited oxygen
undistributed by geological forces
Pollution :) Since Abiotic means non living.
Bacteria: Living
Food (worms or smaller fish): Living
Predators: Living
Pollution (dirt, trash, or other stuff): Non Living
OK, richness you do have to depend on any one
The federal government regulates and controls the economy through numerous laws affecting economic activity.
I hope that answers your question.
