Which of the following materials cannot be used for liming?
Answer Details
Urea cannot be used for liming. Liming is the process of adding materials to soil to increase its pH level, which makes the soil less acidic and more alkaline. Urea is a nitrogen-based fertilizer that is commonly used to provide plants with nitrogen. It does not have any liming properties and will not increase the pH level of the soil. Therefore, urea is not a suitable material for liming. The other options (gypsum, basic slag, and chalk) can be used for liming because they contain calcium or magnesium carbonate, which can react with the soil to increase its pH level.