Final answer:
The Dust Bowl caused a decline in population as people left for job opportunities.
Step-by-step explanation:
The correct answer is option A. The Dust Bowl had a significant impact on the communities of the Southern Plains states. The population declined as millions of people left in search of job opportunities. The severe drought and dust storms destroyed crops and made the land unproductive, leading to economic hardship and forcing many families to migrate out of the region in search of better livelihoods.
Learn more about Effect of the Dust Bowl on communities in the Southern Plains states