Describe the benefits and costs that farmers experience when they till their soil. Choose the best answer from the list below. Group of answer choices Benefits: less use of herbicide needed, costs: more labor or fuel and less fertilizer needed. Benefits: turning over weeds and returning their nutrients to the soil, costs: increasing earthworm abundances. Benefits: improving air circulation and drying the soil, costs: weathering the soil by exposure to the air. Benefits: improving air circulation and drying the soil, costs: replacing previous crop with a fallow ground cover. Benefits: turning over weeds and returning their nutrients to the soil, costs: accelerating weathering of soil by exposure to the air