The gadsden purchase allowed a direct railroad line across the southern territory. true false

answer; ///i believe that the correct answer is ; the american revolution led to the creation of a democratic republic;

john maynard keynes developed new economic theories in response to the stock market crash of 1929. great depression of the 1930s. first and second world wars. economic boom of the 1950s.

b is the answer i am assuming

darwinism is survival of the fittest there for social darwinism is the survival of the wealthiest