Page 4 - LESSON 15 MM2
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  Joseph Lister, an English surgeon, discovered antiseptic.

                     He discovered that wounds could be protected from getting infected by
                      washing them in carbolic acid.






               Sterilisation:













                     Sterilisation is the process of killing or removing harmful germs from a

                      substance.
                     Common methods are- heating, boiling, chemical treatment and

                      pasteurisation.
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