Do you think the great depression could happen again

It is difficult to say. It is doubtful that a 1929 style Depression could happen in the same way. Financial matters, like commercial and investment banking, are substantially regulated, although regulations have been cut back over the last thirty years. Still regulations remain in place that may not prevent Depression but may soften the blow.

No not in my  opinion, but it is still possible. The stock market could crash again.

do u have any answer choices man?

the american civil war was not caused   by slavery but by economic factors.