Is an earthworm a scavenger or a decomposer?

An earthworm is primarily considered a decomposer, as it breaks down organic matter, such as dead plants and leaves, into nutrients that enrich the soil. While it does consume decaying material, which is a characteristic of scavengers, its role in the ecosystem is more focused on decomposition and nutrient recycling. Earthworms help facilitate the process of decomposition by aerating the soil and enhancing its fertility.