Respuesta :
The answers to your question is,
Encyclopedias are reliable, since they practically have anything you are looking for, unless you are talking about online encyclopedias, then those aren't that trustworthy. They can be changed easily.
Personal history blogs are not reliable, as they can be fictional history made by the creator. It could possibly contain anything.
History blogs maintained by renowned universities are reliable, assuming that they are a very educated university. There are possibilities for fake information or wrong information, though.
Academic Textbooks are reliable, they were made to be used as a resource for studying and all. People rely on information from the ones who make these books.
-Mabel <3
The encyclopedia, history blogs, academic textbooks are the reliable secondary source and the personal history blogs are the unreliable sources of secondary blogs.
What are the secondary reliable and unreliable sources?
Encyclopedias are trustworthy since they almost always have what you're looking for unless you're talking about internet encyclopedias, which aren't as reputable. They are easily replaceable.
Personal history blogs are unreliable since they can be made up history by the author. It's possible that it'll hold anything.
History blogs maintained by prestigious universities are trustworthy, assuming that the university is well-educated. However, there is the possibility of false or incorrect information.
Academic textbooks are dependable because they were designed to be utilized as a study resource. People rely on the information provided by the authors of these books.
For more information about secondary sources, refer below
https://brainly.com/question/504820
