Pasteurization which is the process named after him. There are various answers to the temperature of Pasteurization, but generally the process of heating milk for example is done at 72oC for 15 seconds. That usually does germs in.
Louis Pasteur is one of the famous French biologist and chemist who made several scientific contributions in inventing of pasteurization that prevented food from getting spoiling like beer, milk, and other foods. Pasteurization is important because it kills the germs and prevents from getting any diseases which can be caused while consuming food items.
I think the correct answer would be the second option. The Soviet Union joined the allies because Hitler had broken a pact and attacked. The pact was called the German-Soviet nonaggression pact. This pact was regarded by Hitler as a tactical move. It was signed on the year 1940 and after a year Hitler attacked the Soviet Union.
