Which of the following is true about economic advances in both ancient China and ancient Mesopotamia? A. They used irrigation to make farming more productive.
B. They introduced terracing to make farming more productive.
C. They sold goods in the Mediterranean to expand trade.
D. They made iron plows and other tools to improve farming.

B They introduced terracing to make farming more productive.Explanation: because trust me

workers of lowell mills were greatly benefited for the waltham type of work which was more a paternalist kind, trying to protect the integrity of this little girls coming from small farmers and providing an adequate place of work, this in an effort to avoid the issues of bad place conditions and immorality that the people in bigger industrialized cities of great britain were experimenting.

first paragraph (and busy all the night ,with a silence deep and white )