Why dosent the soil run out of nutrition?

Soil doesn't run out of nutrition because it is a complex ecosystem that continuously replenishes itself through processes like decomposition of organic matter, nutrient cycling, and interactions between plants and beneficial microorganisms. When plants absorb nutrients from the soil, they release organic matter back into the soil through their roots and fallen leaves, which help sustain the soil's nutrient content. Additionally, practices like crop rotation and adding organic matter can help maintain soil fertility over time.