Which feature of the us government is an expression of the concept of federalism

What was the first official pair of sister cities?

In north america, most winter storms form when cold, dry air from interacts with warm, moist air from

Which of the following statements best characterizes changes to agriculture in the united states since 1900? a. increased mechanization has reduced the need for labor. b. increased mechanization has increased the need for water, thereby increasing the need for labor. increased mechanization has increased the use of land, thereby increasing the need for labor. d. increased mechanization has increased food production, thereby increasing the need for labor. select the best answer from the choices provided.