Biochar can help depleted soils by enhancing soil fertility and structure. It acts as a carbon sink, sequestering carbon in the soil for hundreds to thousands of years. Additionally, biochar improves water retention, nutrient retention, and microbial activity in the soil, leading to increased crop productivity. As for reducing soil acidity and improving soil organic matter, biochar can buffer pH levels and increase cation exchange capacity (CEC), allowing the soil to retain more nutrients and reducing the risk of leaching. Its porous structure provides a habitat for beneficial microorganisms, which further contribute to organic matter decomposition and nutrient cycling. Overall, biochar can be a valuable tool in sustainable agriculture practices to enhance soil health and productivity.