There exist various ways of investment into human resources. Businesses can invest in general human capital, which is an investment into specific or general training that enables acquisition of general knowledge usable in various companies. This results in higher future expected return of investment.
Shortages almost destroyed the American economy i believe is correct answer
All of the options listed are powers of the federal branch of government, granted under the Constitution, except "regulate elections," and "set up town governments," since regulating elections is mostly up to the state (although the federal government can technically intervene) and setting up town governments is a local issue.
I believe they were similar by invading other nation neighbors and kill thousands of people before and during that time period. hope this helped :)
Invaders became absorbed into the Hindu culture of the region rather than altering the culture of the people
Communication throughout the empire was too slow to keep the government in contact with remote regions