<em> the process of pasteurization was invented by French scientist</em><u><em> Louis Pasteur </em></u><em>during the nineteenth century. In 1864 Pasteur discovered that heating beer and wine was enough to kill most of the bacteria that caused spoilage, preventing these beverages from turning sour.</em>
If you don't have a book to help you with this, then it's undeniably the teacher's fault - if you do, you either want to provide it to us, or look at it to obtain your answers.
