Question

a student compares a textbook and a blog post about the industrial revolution. the textbook is written by a university professor. it cites government records. the blog post is written by an amateur historian. it has no citations. use the drop - down arrows to complete the sentences. the textbook is the more credible source because it is written by an expert. it also includes
primary sources
unknown sources
reliable because it instead of evidence.

Explanation:

1. For the first dropdown (after "includes"): Government records are primary sources (original documents/records from the time or by official bodies), so "primary sources" is correct.
2. For the second dropdown (about the blog post): The blog post has no citations, so it likely uses personal opinions (since it lacks evidence/citations) instead of evidence. So we assume the option here would be something like "uses personal opinions" (though the exact option text isn't fully shown, based on context, the blog post relies on non - evidence - based content like personal opinions as it has no citations).

Answer:

First dropdown: primary sources
Second dropdown (assuming the option is about using non - evidence content like personal opinions, for example if options are like "uses personal opinions", "provides data" etc.): uses personal opinions (exact option depends on the dropdown choices, but based on context, the blog post lacks citations so it uses non - evidence like personal opinions instead of evidence)