Which Element is LEAST Likely to Be an Abiotic Factor

Question

Which element is LEAST likely to be an abiotic factor that can affect community structure?  
A) Sunlight
B) Rainfall
C) Cloud cover
D) Decomposing organic matter
E) Temperature

Accepted Answer

Decomposing organic matter is a biotic factor as it involves the actions of living organisms such as bacteria and fungi. Abiotic factors are non-living components of the environment, such as sunlight, rainfall, cloud cover, and temperature.