Describe and Explain the Practical of Testing the Action of Antibiotics [Part 2: Explain from 'Lawn' of Bacteria to the End]

6. A Clear Zone will also be Visible, meaning that the Bacteria could NOT grow there. The larger the Area of the Clear Zone; the more Effective the Antibiotic was [πr²] 7. The Control Disc will ensure that the Difference will be Evident in terms of Growth of Bacteria in the Control Disc and the Antibiotic Discs. If not then well the Paper is Weird, or another Factor is Involved [Bacteria might be Resistant to the Antibiotic] 8. Antiseptics or Antivirals also can be Used, to see how Effective they Are.