The chart shows immigration to the united states between 1840 and 1920. which conclusion does the chart support? america experienced a major population increase and did not want to disrupt its ethnic diversity by going to war. america experienced a major population decrease and could not afford to get involved in a war overseas. america experienced a major population increase and did not want to disrupt this growth by going to war. america experienced a major population decrease in 1910 and could not afford to lose more people in a war overseas.