Pasteurization is a process where certain packaged or non-packaged food such as milk or fruit are treated with mild heat. The goal of this process is to eliminate pathogens ( infectious agent or germ) and to extend the product's shelf life.
The inventor of pasteurization was the French scientist<em> Luis Pasteur</em>. In his research he demonstrated that thermal treatment would inactivate unwanted microorganisms in wine.
Vaccination is the application of antigenic material (vaccine) to stimulate the body's immune system and to develop an immunity to a pathogen (germ).
Smallpox was the first ever disease for which a vaccine was developed. It was invented in 1976 by the English physician<em> Edward Jenner.</em> Jenner was the first person to publish evidence that the vaccine was effective. The name vaccination derives from Latin<em> vacca </em>(cow), because it was derived from a virus affecting cows.
<span>B. The Russians pulled out from the war, enabling the Germans to focus on the Western front.
I think if it's wrong tell me.</span>
the devastation it experienced in World War II.
<span>1.) A. Women were able to join and even run guilds.2.) C. The Roman Catholic Church centralized authority in the pope, while the Eastern Orthodox Church shared power between the emperor and the patriarch.3.) B. Using credit instead of cash became more common in business.4.) B. Many medieval Christians were suspicious of Jewish culture and practices.
5.) D. The Church's power to deny the sacraments gave the Church power over Christians.6.) A. collection of tithes</span>
