What are the examples of inert information for critical thinking?

Inert information is any information a person memorizes, internalizes and accepts as true without fully understanding it. Often this information is in the form of generalities that are commonly accepted, but the person who accepts the information could not say why it is true. It is basically the opposite of critical thinking, which does not rely on memorization of generalities but rather a full examination of information in order to reach a conclusion.