how much concentrations of salt is required to kill unwanted bacteria a. 5% b.10% c.15% d.20%
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Answer:
d) 20%
Explanation:
Salt is used to kill bacteria because salt has the property of sucking away water which will be very useful to kill bacteria as bacteria die when the water or liquid in them is sucked out .
(if this is a choice question then no need for such a big explanation, I just gave it because I thought it would be useful ) Hope you find this useful .
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