- Decomposition is when a decomposer recycles / returns nutrients / nitrogen from dead organisms to the soil by eating those dead organisms
- A decomposer performs decomposition
- Hence, a decomposer recycles nutrients from dead organisms into the soil

- A decomposer recycles nutrients from dead organisms into the soil
- Recylcing is a kind of function
- Hence, a function of decomposers is to recycle nutrients into the soil

So, a function of decomposers is to recycle nutrients into the soil
[Question]Food webs show feeding relationships among different types of organisms. Those organisms each have a specific niche. Which of the following best describes a function of decomposers in food webs?
[Context]- Decomposition is when a decomposer recycles / returns nutrients / nitrogen from dead organisms to the soil by eating those dead organisms 
- Recylcing is a kind of function 
- A decomposer performs decomposition