Solution:

Antibiotics produced by bacteria are widely recognized as one of the most important discoveries of the twentieth century, and they have made a tremendous contribution to human wellbeing. Anti is a Greek term that means “against” and bid meaning “life.” When used together, they indicate “against life” (in the context of disease-causing organisms), yet they are “pro-life” and not “against.” Antibiotics are chemical molecules produced by some microorganisms that have the ability to kill or slow the growth of other (disease-causing) germs. Antibiotics have substantially enhanced our ability to treat terrible diseases like plague, whooping cough (Kali khansi), diphtheria (Gal ghotu), and leprosy (Kushtrog), which killed millions of people around the world. Antibiotics are now so common that we can’t envision a world without them.