Answer:
the russians practiced communism where as the west (usa,britain,france) were anti communist. the us were capitalists , thus is would make sense that the ussr and the usa would clash eventually despite their pasts of helping eachother out. once russia clashed with the west it gave way to the cold war
The Grant Depression led Americans to believe that President Herbert Hoover was to blame. Hoover entered office, right as the stock markets crashed, and he could not do anything to prevent that. America learned that they could persevere through thick and thin as a country. That not even a money drought can stop the United States of America.
They shut off all extinct encluding smell sense taste etc.could not feel anyhing
His inventions sped production. This made life easier. This also made things faster for everyone.