What are the roles of a decomposer? Check all that apply.Decomposers kill harmful microorganisms.Decomposers break down waste and dead organisms.Decomposers provide oxygen to the atmosphere.Decomposers convert sunlight into food energy.Decomposers recycle nutrients in the environment.

Decomposers, such as fungi and bacteria, break down dead organisms and waste. This releases nutrients back into the environment, where they can be used again. Providing oxygen and converting sunlight into food energy are not decomposer roles.

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