How did emperor justinian affect the shape of the roman empire?
a. he gained or regained new lands in the west
b. through lack of interest, he lost north africa
c. he let barbarians chip away at the empire
d. he gave asian provinces their independence

Which of these rose during the great depression?

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal

President of the united states has scheduled a cabinet meeting today to discuss energy policy with specific focus on pollution and global warming. given what you know of the executive branch, which group of attendees would the president most likely expect to provide up-to-date information and expert insight during this meeting?