Consider a weathered rock or soil particle lying on a slope. How will the gravitational force pulling the particle downward along the land surface vary with the inclination of the slope?
◦ It will increase as the slope angle is lessened.
◦ It is not affected by the slope angle.
◦ It will decrease as the slope angle is lessened.
◦ It will possibly increase or decrease as slope angle is lessened, depending upon other factors.