How did Charlemagne gather together many of the former Roman empire European territory's

A- He asked the Pope to appeal for Christians to join with him.

B- he sent out Missi Dominici to negotiate with pagan leaders

C- he conquered many European kingdoms and fought off invaders

D- he made a lot in the common daily language of Western Europe

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

How many senators are there from each state? a. two c. one b. three d. the number depends on the state’s population

Plz quickly ! which of the following elements is not typical of an advanced society. a. cities b. science c. industries d. a nomadic lifestyle