The invention and use of the microscope showed scientists that germs could cause illness. although there had been various understandings before for why people become ill, the discovery that microscopic germs can make people sick completely changed scientific understanding of why diseases exist and spread. this change is an example of what? how a law changes when new evidence disproves it how a law stays the same as new scientific inquiries are made how a theory changes as new areas of science open up how a theory stays the same when new research confirms it

how a law changes when new evidence disproves it. ;)

The correct answer will be option-how a law changes when new evidence disproves it.

Explanation:

The scientific method is the best approach to answer any scientific answer. The answer provides the facts and evidence which formulate the laws and the explanations which formulate the theory.

In the given question, the people were aware of the causes of illness which were based on the facts that were or not proved with the experiments. This knowledge provided the facts and formulated the laws.  

The advancement in the technology like microscope provided the scientific evidence that illness could be caused by the microbes. This changed and modified the existed laws regarding the causes of illness.

Thus, option-how law changes when new evidence disproves it.