HomeSSCLiming is the application of calcium and magnesium rich materials to soil in various forms, including marl, chalk, limestone, or hydrated lime. What is the purpose of liming? Liming is the application of calcium and magnesium rich materials to soil in various forms, including marl, chalk, limestone, or hydrated lime. What is the purpose of liming?By Admin / October 4, 2025 A. Increase the Soil pH B. Increase the bacteria activity C. Both A & B D. Decrease the bacterial activity ✅ The correct answer is option C.