Final answer:
Option (1), Earthworms are decomposers and detritivores that consume waste such as animal feces, which they break down to release essential nutrients back into the environment, aiding in soil fertility.
Step-by-step explanation:
Decomposers like earthworms do indeed feed on waste, such as animal poop, playing a vital role in the ecosystem. As decomposers, they break down dead materials and waste products, such as fallen leaves and animal feces. During this process, they release important nutrients back into the environment, which are essential for the survival of plants and other organisms.
Earthworms are known as detritivores, a type of decomposer that ingests and digests organic matter. This includes soil mixed with decaying plant and animal material. As they pass the soil through their bodies, they extract the organic matter and help to aerate and enrich the soil, making it more fertile for plant growth.