Why is the earthworm called the king of decomposers?

The earthworm is often referred to as the "king of decomposers" due to its crucial role in breaking down organic matter in soil. By consuming dead plant material and organic waste, earthworms facilitate decomposition and nutrient recycling, which enriches the soil and promotes healthy plant growth. Their burrowing activities also aerate the soil, improving water infiltration and root development. This combination of processes makes them vital contributors to ecosystem health and soil fertility.