2
QuizMultiple Choice

Hypotheses, Theories, and Laws

Question 2 • FL-2003010-M/J Physical Science

How did Louis Pasteur’s experiments lead to new scientific understandings of germs?

Answer
A
Experiments with cooking food showed that disease-carrying germs in food could be killed when heated.
B
Experiments with different magnification lenses showed that germs were real and could be observed.
C
Experiments with animals showed that dominant genes could lead to risks of disease.
D
Experiments with shallow dishes showed that groups of germs could be grown so they could be seen without microscopes.

Explanation

Pasteur heated food and liquids to show that heat could kill harmful microorganisms and help prevent spoilage and disease. This finding led to pasteurization, a process that heats foods such as milk to reduce germs. The correct choice is “Experiments with cooking food showed that disease-carrying germs in food could be killed when heated.”

AI-written and checked against the verified answer.

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