Which organisms break down dead matter and waste into nonliving elements? consumers decomposers omnivores producers

Decomposers

Explanation:

When an organism consumes another organism from a different population it is known as a consumer.

The animals that consume plants and animals are known are omnivores.

Producers are the organisms that are the initial point of the food chain. They produce food for other animals by converting the energy from the sun.

Decomposers the last point of the food chain where matter is broken down an absorbed into the soil.