What is the difference between an observation and a theory give an example of each?

Why was charliemagne hesitant about being crounded holy roman emperor?

What is generally true of the lower house in a state legislative branch ?

Which region on the map would have been directly affected by the infestation of the boll weevil in the late-19th and early-20th centuries? a) 5 b) 4 eliminate c) 3 d) 2