Fact 1: Earthworms are important deposit feeders that help form and enrich soil. Fact 2: Deposit feeders ingest sediment and extract food particles. Given the two facts above, what do Earthworms do to the soil?
Options are: 1. reusing things; 2. competing for resources; 3. Ruins the soil; 4. Enriches the soil; 5. Damages them; 6. Converting waste.; 7. Creates more soil; 8. Makes the soil mold;
4.