What causes large bodies of land, like supercontinents, to break apart?

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.

Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics

Anight-club bouncer, now a top official, put coke or pepsi in it; first three initial. combine all lakes; but i still have more, of all the places; i have the largest shore. what am i? ?