Q1.
The student placed the agar plate in an incubator at 25 °C for 48 hours. Figure 2 shows the agar plate after 48 hours.
Calculate the area where no bacteria were growing for antibiotic C.
Use π = 3.14 Give the unit. ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________
________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________
Area = ____________________ Unit __________ (5)

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