Concept:Edaphic factors are the soil-related abiotic conditions that influence living organisms.
Explanation:Climatic factors involve weather elements like temperature, rainfall, and sunlight.
Topographic factors refer to surface features such as slope, elevation, and relief.
Edaphic factors describe soil properties, including both its physical structure (texture, porosity) and chemical content (pH, minerals).
The chemical and physical composition of soil fits directly into this definition.
Hence, the correct classification is edaphic, not chemical, because it covers the whole soil make-up, not just its chemicals.
Answer:C. Edaphic factor