What effect did advancements in agricultural technology have on the economy of Sumer? A.
More grain led to specialization, hurting economic growth.
B.
More grain allowed Sumer to trade more, growing the economy.
C.
More grain decreased the price of food, hurting economic growth.
D.
More grain led to crop diversification, growing the economy.

17 points! ! (explain your answer)

Dr. robbins wants to know if there are different opinions regarding the value of public school education between native americans who have at least one relative who attended indian boarding school and native americans who have no family experience with indian boarding school. dr. robbins contacts 35 native american participants in each group. he wants each group to include younger as well as older adults, and a mix of male and female participants. he asks each person to complete a survey about their attitudes toward public education. the design of this study is:

What were the anti-federalists against? a. the views of patrick henry b. ratification of the constitution without a bill of rights c. the declaration of independence from great britain d. a weak central government