One of the major <span>inventions that improved agricultural output between 1750 and 1870 are:</span><span> - Cotton gin : </span><span>Eli Whitney invents the cotton gin in 1793, which contributes to the success of cotton as a Southern cash crop. </span>- iron plow : Jethro Wood invented the iron plow with interchangeable parts in 1819 <span>- Factory-made agricultural machinery (1840s)- this </span> encouraged commercial farming <span>- chemical fertilizers were sold commercially (1849) </span>- <span>Steam tractors are tried out</span>
<span>Assuming that this is referring to the same quote that was posted before with this question, <span>the correct response would be the "Declaration of Independence" since it includes wording that is meant to inspire people to form their own government. </span></span>