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Answer:
1.Among these minerals, calcium and magnesium are found in abundance. Other than this, hard water may also include other compounds such as bicarbonates and/or sulphates. Hard water is generally preferred as drinking water owing to its high mineral content. Even in terms of taste, hard water is superior to soft water.
2.
hard water causes soap to mix ineffectively in water. This can ruin your shower time and irritate your hair and skin. When showering, the soap is difficult to wash away and it leaves a residue after rinsing. You'll notice that you won't be as clean as to how you use to be right after taking a bath.
3.Hard water contains dissolved salts of calcium and magnesium. It gives poor lather with soap and hence is not intended to be used in laundries and in water boilers used in industries. ... Hard water is also responsible for the clogging of pipe lines.