Dr. Roussel, a scientist, conducts research to determine whether an after-school program improves school performance in fifth-grade children. Dr. Roussel is most likely engaged in

Which action allowed farming to be expand into west texas? a inventing a new plow b developing dry farming c increasing demand for cotton worldwide d declining of the cattle ranching industry

In the wake of the civil war, compared to the south the north had sustained very little destruction. had to create a new labor system. had more economic challenges. had to repair damaged property.

Japan’s key exports to africa and southwest asia are mostly a) raw materials. b) human capital. c) manufactured items. d) agricultural products.