- Which sentence best describes mass movement?
AThe movement of particles within an atom B. The downhill flow of soil and rock resulting from gravity C. The downhill movement of animals due to heavy snow in their normal home D. The steady pace of air bouncing off a mountain
AThe movement of particles within an atom B. The downhill flow of soil and rock resulting from gravity C. The downhill movement of animals due to heavy snow in their normal home D. The steady pace of air bouncing off a mountain