Which of the following salts is the most common source of water hardness? HomeWater Pollution MCQsWhich of the following salts is the most common source of water hardness? water pollution mcqs Q. Which of the following salts is the most common source of water hardness? Magnesium sulphateMagnesium bicarbonateMagnesium carbonateNone of the above Answer: Magnesium carbonate
The central pollution control board and the department of ocean and environment has established __________ stations over the entire coastal line of the country
