Answer: A) abiotic
Explanation: Biotic factors, such as trees, are the living parts of an ecosystem. Predators, food sources, and competitors are other examples of biotic factors.
Abiotic factors are not, and have never been, alive. Air, temperature, moisture, salinity, and pH are all abiotic factors.
All organisms within an ecosystem are influenced by the combination of the biotic and abiotic components in their environments.
