Technological development led to an increased demand for slaves in the united states during the early- to mid-1800s? a) the steel plow b) the cotton gin c) the mechanical reaper d) the combine harvester

The B. Cotton Gin was a technological development that led to an increased demand for slaves in the United States during the early - mid 1800's. The cotton gin made it easier to separate seeds from the cotton - making it faster to pick cotton!

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