Question

lab: building an ecocolumn when successful decomposition happens in the decomposition layer of the ecocolumn, the temperature of that layer will increase. what do you put in this layer to improve decomposition? fertilizer humus and decaying organisms

Explanation:

Decomposition is a process carried out by decomposers (like bacteria, fungi) that break down organic matter. Humus and decaying organisms are organic materials that provide the substrate (food source) for decomposers to act on, thus promoting decomposition. Fertilizer is more for plant nutrient addition and not the primary driver of decomposition in an ecocolumn's decomposition layer.

Answer:

Humus and decaying organisms