1.

Which of the following materials can be used by a farmer to treat the too acidic soil of his fields? Quick lime (CaO) Slaked lime (Ca(OH)2) Chalk (CaCO3) Select the correct option from the codes given below:

A. Only 1 & 2
B. Only 2 & 3
C. Only 1 & 3
D. 1, 2 & 3
Answer» E.


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