From the mid-1930s to 1940 over 2.5 million people had moved out of the great plains states in the center of the united states. what best accounts for this movement?

It was the  Dust Bowl. The dust storms extremely affected the agriculture negatively.  

hi how are you doing today? if you ever need just tell me

accomplishment : zachary taylor’s was a national war hero in his battle in an mexican war

explanation:

he was known as a national war hero for his battles in the mexican war, taylor was elected as the 12th president of the united states in 1849. he led the nation during its debates on slavery and southern secession. after serving only 16 months in office, taylor died from cholera morbus on july 9,