Based on the article, why did the Great Migration end in the 1970s?

Brainliestttme : ) how are developed nations and developing nations similar? both have membership in multinational groups. both experience high death rates. both experience low infant mortality rates. both have high per capita income.

Which describes the main effect of the palmer raids? they were successful in uncovering communist operatives in the united states. they show the american public that there was little evidence of communism in the country. they resulted in the deportation of suspected radicals based on little evidence. they brought about the end of the red scare by clearing several supposed radicals.

Which of harriet martineau’s books is a foundational treatise on sociological data collection?