Answer : house and senate representation is proportional to population size - D.
A is the correct answer.
Westinghouse was a prolific inventor who also invented the air brake which made railroad travel safer & faster.
Anyways if one of the orange countries is the USA then its the Allied Forces. If one of the orange countries is Germany then its the Central Powers. Triple Entente was way before WWI and the Axis Powers was WWII.
Its Red I promise I just got 100% on the quiz.
Good luck with it!
Europeans were able to trade in a more efficient way. it made it easier for them to trade slaves and other items from Africa to American colonies to Europe