Steel slag can be the material for which of the following? 1. Construction of base road 2. Improvement of agricultural soil 3. Production of cement Select the correct answer using the code given below:

उत्तर देखें और व्याख्या

उत्तर: (D) 1, 2 and 3

व्याख्या

Steel slag is used as road aggregate, as a soil conditioner (liming agent) and in cement manufacture.