Question

how did louis pasteur kill bacteria in broth?
he poisoned it
he baked it
he boiled it
he yelled at it

Explanation:

Louis Pasteur developed the process of pasteurization, which involves heating (boiling or heating to a specific temperature) liquids like broth to kill bacteria. Poisoning, baking (in the sense of typical baking), or yelling at bacteria are not scientific methods he used for this purpose. So the correct option is the one where he boiled the broth.

Answer:

C. He boiled it (assuming the options are labeled A, B, C, D with C being "He boiled it")