Question

which is biotic?
○ water
○ temperature
○ sapling
○ rocks

Explanation:

Biotic factors are living or once - living components of an ecosystem. Water is an abiotic (non - living) factor as it is a chemical compound without life. Temperature is a non - living environmental factor (abiotic). Rocks are non - living (abiotic) as they are mineral structures. A sapling is a young plant, and plants are living organisms, so it is a biotic factor.

Answer:

C. sapling