I think its from anger and violence. When you're fighting someone think of the reasons, try to come to a conclusion. Don't comment on color, race or sexuality. Don't be personal with the comments either. Thats all I can tell, Bye soldiers~!
Answer:
At the time there were a lot of advancements being made in the textile industry. This increased the need for cotton. and therefore increased the demand for slave labor. What the cotton gin did was made picking cotton a much quicker process, and this led slave-owner's to have their slaves pick cotton because it became so profitable for the slave-owners. So the cotton gin increased the demand for slave labor because it made cotton-picking much more profitable.
D - Produces more goods and services