Steel slag can be the material for which of the following?

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1.Construction of base road

2.Improvement of agricultural soil

3.Production of cement

Select the correct answer using the code given below:

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1. ??? ??? ?? ???????

2. ???? ???? ?? ??????

3. ?????? ?? ???????

???? ??? ?? ??? ?? ????? ???? ??? ????? ?????:

[UPSC CSE PRE 2020]

A 1 and 2 only

केवल 1 और 2

B 2 and 3 only

2 और 3 ही

C 1 and 3 only

केवल 1 और 3

D 1, 2 and 3

1, 2 और 3

Answer: (d) Explanation: Steel slag, a by-product of steel makin...

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