Final answer:
Riots during the 1830s and 1840s were a result of stress and tensions related to the war, resulting in property damage, casualties, and racial violence.
Step-by-step explanation:
The statement that is true about the riots during the 1830s and the 1840s is that they occurred in cities throughout the United States as a reaction to stress, scarcity, loss, and fear experienced during the war on the 'home front' (source: History). For example, the New York race riot in the 1830s resulted in property damage, casualties, and the lynching of black men (source: History). Similarly, in the South, racial tensions led to riots and violence against blacks, as seen in the Memphis and New Orleans riots (source: History).