Which of the following characteristics are common to all four planets in the inner solar system? A. All four planets have one or two moons.
B. All four planets have a solid, rocky surface.
C. All four planets have a thin, toxic atmosphere.
D. All four planets have the same orbit length around the sun.

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.