Who was responsible for the contribution that light is emitted and absorbed in bundles that are dependent on the frequency of a light wave.
a. albert einstein
b. max planck
c. thomas young
d. geoffrey taylor

i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.

i would say it is the roman empire europe after the norman conquest.

because they can and they wanted to.