One of the most significant political consequences that resulted from the spread of cotton agriculture across the south into the southwest of the nation was that

The most significant political consequence that resulted from the spread of cotton agriculture across the south into the southwest of the nation was that the cotton agriculture were able to accumulate a capital in which is the industry of the northern area.

the effect of the ming leaders banning ships with more than two masts was that there was no further construction of ships masts, because there was a surplus. ming emperors disallowed foreign exploration