Which best explains why barbarian groups were able to weaken the Byzantine Empire? The empire directed its spending on trade, not building up the army.
The empire's territory was extremely small and open for invasion.
The empire's armed forces had little combat experience.
The empire had several unprotected areas for warring groups to invade.

The process of getting information out of memory is called

Icivics worksheet : rules for running a country

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design