What is the best way to define Europe as a region, language or religion?

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.

In a command economy, the majority of goods and services are provided by the

Which layer surrounds the center of the earth? a: crust b: core c: mantle