Oklahoma Conservation Commission Soil Scientist Greg Scott holds healthy soil that absorbed two inches of simulated… https://www.rawpixel.com/image/3259483/free-photo-image-agriculture-us-usdaFree Image from public domain licenseEarthworms in the soil are indicators of healthy soil biology. Linker Farms. Judith Basin County, Montana. June 2020..… https://www.rawpixel.com/image/3335324/free-photo-image-animal-cc0-conservationFree Image from public domain licenseIn healthy soil, earthworms feed off deep, large rooting plants like turnips and radishes. Earthworms feed off roots to… https://www.rawpixel.com/image/3335315/free-photo-image-mud-animal-cc0Free Image from public domain license