How many decomposers are in the world?

It's impossible to provide an exact number of decomposers in the world, as they encompass a vast and diverse range of organisms, including fungi, bacteria, and detritivores like earthworms. These organisms are found in nearly every ecosystem, from forests to oceans, and their populations can vary widely based on environmental conditions. Decomposers play a crucial role in nutrient cycling and ecosystem health, but quantifying their total numbers is challenging due to their microscopic size and the complexity of ecosystems.