Which of the following was a major challenge that faced the United States after the Revolution? 1.Each state was much smaller than they were when they were colonies
2.The national government had too much power
3. Many soldiers were not paid during the Revolution and had no money

i think the most likely answer is 3.

BUT i'm not sure here because the size of the original colonies didn't change, the first national government system established in the U.S was too weak, and soldiers were paid monthly or with bounties to the states.

the language dates from the contacts of arabian traders with the inhabitants of the east coast of africa over many centuries. under arab influence, swahili originated as a lingua franca used by several closely related bantu-speaking tribal groups.

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.