Question

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

Answer 1

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

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Answer 2

Answer:

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