Which invention expanded slavery by making cotton easier to process?

Which invention expanded slavery by making cotton easier to process?

• A. Spinning Wheel
• B. Cotton Gin
• C. Mechanical Reaper
• D. Cotton Processor

Answer: (B)

The concept at work is how a new machine transformed labor needs in the cotton economy and, in turn, expanded slavery. The cotton gin dramatically speeds up separating cotton fibers from their seeds, making cotton processing far more efficient. Because this process could be done much faster, cotton became far more profitable, encouraging planters to grow larger crops and push into more land. That increased profitability depended on a larger enslaved workforce to plant, pick, and process the cotton, leading to the expansion of slavery in the South. Spinning wheels are tied to textile production in general, not to on‑farm cotton processing. The mechanical reaper is about harvesting grain, not cotton. A cotton processor isn’t the same historical driver as the cotton gin in this context, so it wouldn’t explain the shift as clearly.

The concept at work is how a new machine transformed labor needs in the cotton economy and, in turn, expanded slavery. The cotton gin dramatically speeds up separating cotton fibers from their seeds, making cotton processing far more efficient. Because this process could be done much faster, cotton became far more profitable, encouraging planters to grow larger crops and push into more land. That increased profitability depended on a larger enslaved workforce to plant, pick, and process the cotton, leading to the expansion of slavery in the South.

Spinning wheels are tied to textile production in general, not to on‑farm cotton processing. The mechanical reaper is about harvesting grain, not cotton. A cotton processor isn’t the same historical driver as the cotton gin in this context, so it wouldn’t explain the shift as clearly.