How does gross domestic product provide a means to analyze economic growth?

What do states primarily use their reserved powers to regulate? a. services related to national citizenship b. issues that affect day-to-day life for state residents c. issues involving taxation d. issues that affect states' interaction with the federal government

Many scandinavians immigrated to the united states as a result of the homestead act of 1862, which offered land to independent farmers. this is an example of a push factor, because turmoil in scandinavia encouraged people to leave. push factor, because a new opportunity encouraged people to come to the us. pull factor, because turmoil in scandinavia encouraged people to leave. pull factor, because a new opportunity encouraged people to come to the us.

Which of these resulted in an actual slow down or limiting of the u.s. and soviet nuclear arsenals?