Explain the main issues surrounding and involved with imperialism

it can make a nation too prideful and that can turn to arrogance and they will begin to "act out" against other nations and cause conflict

i think the answer is a and i hope this ; ))

the causes of the dust bowls were severe droughts,   lands became dry and hard, temperature was higher than usual, hot and dry conditions killed crops, high winds. because of those factors, the winds kicked up dry soil and created clouds of dust.