Question
 Which of the following materials were used for the
reclamation of saline soil?Solution
Gypsum is commonly used for the reclamation of saline soils due to its ability to improve soil structure and reduce salinity
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Six years ago, the ratio of the ages of a father and his son was 5 : 2. After six years, the ratio of their ages will become 7 : 4. What is the present ...
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