Which chinese dynasty was founded after the emperor yu discovered how to control the yellow river?

Why do many scientists suppose the land bridge theory of migration?

Which of the following was not a result of the industrial revolution in europe? a. the rise of a middle class b. the urbanization of europe's society advances in agriculture and industry d. the decline of europe's large cities

Which of the following statements about the economic consequences of the civil war is not accurate. a. inflation caused prices to rise by 80% in the north. b. because southern farms cannot process enough food for everyone in the south the union navy allowed food shipments from britain. c. to pay for all of the food supplies and arrangements that were necessary for the union army congress instituted an income tax. d. business boomed in the north as factories and farms always had a market for their products.