Explanation:

Scavengers: The organisms which eat the dead organisms are called scavengers. Ex: vulture and Eagle. Decomposers: the microorganisms which are present in soil break the organism into tiny pieces and decompose into the soil causing no soil pollution

Answer:

1. Decomposers and scavengers break down dead plants and animals. They also break down the waste (poop) of other organisms. 
2. Decomposers are very important for any ecosystem.
3.  Scavengers are animals that find dead animals or plants and eat them.

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