Possessive Nouns. Possessive nouns are used to indicate ownership. Possessive nouns usually are formed by adding an apostrophe (') and s. When a noun is plural and ends in s, just add an apostrophe ('). If two people own one thing, add the apostrophe and s to the second person only. If two people own separate things, add the apostrophe and s for each person.
Types of antibiotics. There are hundreds of different types of antibiotics, but most of them can be broadly classified into six groups. These are outlined below. Penicillins (such as penicillin and amoxicillin) â widely used to treat a variety of infections, including skin infections, chest infections and urinary tract infections.
Introduction. Antibiotics are medications used to treat â and, in some cases, prevent â bacterial infections. They can be used to treat relatively mild conditions such as acne, as well as potentially life-threatening conditions such as pneumonia.However, antibiotics often have no benefit for many other types of infection.ntroduction. Antibiotics are medications used to treat â and, in some cases, prevent â bacterial infections. They can be used to treat relatively mild conditions such as acne, as well as potentially life-threatening conditions such as pneumonia.