Decide if each of the following are biotic or abiotic factors:
Mushroom (I think biotic)
Tree (i think biotic)
Dirt (I think abiotic)
Grapes (I think abiotic)
Grass( i think biotic)
Paper (I think abiotic)
Steak (I think abiotic)
Coral (I think biotic)
Athlete's foot (I think abiotic)
salad (I think abiotic)
mold (I think biotic)