Answer:
In conclusion many things caused tension between the US and the Soviet Union. The extreme mistrust of one another. The threat of Nuclear warfare. The soviets trying to spread communism.
Edward Parrish
Th first president of Swarthmore College and one of the early members of american Pharmaceutical organizaion is credited to have popularized the word, prior to his numerous usage of the word in his over forty contribution to journals, phamacists were known as apothecaries.
19th amendment was ratified on AUGUST 18,1920
The best answer in regards to the specific question appears to be A: Many small towns boomed as people came to drill wells.
I believe its RADAR.
They had airplanes in world war 1.
Same with machine guns.
And the first repeating rifle was made in 1860.
Which leaves the Radar.
-Steel jelly