Which phrase describes an abiotic factor?
a) amount of fungi on a dead tree
b)amount of oxygen in the water
c)types of birds in a forest
d) number of available mates

The abiotic factor is the amount of oxygen. Abiotic means non-living, and all the other answer choices reference living things.  

If you need more help, comment below and I'd be happy to assist.

The answer would be B). This is because it is the only answer that is nonliving and abiotic means not living.

yes it is   dangerous

explanation:

because that foot is discusting and could get you sick