Answers:
The author is a well-known expert on the topic.; the information comes from a respected university website.
Step-by-step explanation:
A piece of information can be said to be reliable if it comes from a respected authority or expert on a given field or topic. This is easily discernable by just reviewing the professional and academic antecedents of the expert in question.
Also, one could be certain that a piece of information is reliable if it comes from a trusted and respected university. Organizations like these tend to keep very strong filters as to what they publish and post in order to guarantee their reliability and their social and academic relevance.