The black hawk war
a) was notable for the cruel treatment of white settlers by indians.
b) saw the sauk and foxes temporarily regain control of part of western illinois.
c) was over before jackson entered the white house.
d) occurred because black hawk and his followers refused to recognize a treaty by which they ceded their lands to the u. s.
e) cleared the way for the settlement of chicago.

the dust bowl, otherwise known as the dirty thirties, was a huge dust storm that killed multiple (and i mean  multiple) farmer's crops, leaving them homeless, and foodless, and jobless. in california, there were 5.7 million residents, and the population shrank as mexicans were repatriated. however, when the dustbowl happened, a lot of people began to move to california. by 1940, 250,000 people had arrived. therefore, your answer would be  the population increased, massively.  i hope this !

explanation:

although the crusades failed to capture jerusalem, they had several major impacts on western europe. they increased the authority of the king: sometimes nobles died in battle without leaving an heir in which case the king got their land. kings passed taxes to pay for the crusades.