Given the fact that:  The smaller its mass is, the greater its acceleration for a given amount of force.  Answer the question:   Will weighs 180 pounds while Nat weights 120 pounds, who would accelerate less after the same force is applied Will or Nat?
Will

Given the fact that:  Smaller sediments are dropped as the slope becomes less steep.  Answer the question:   When looking at a hill, Shane sees that the sand on the steep slopes is finer or thicker?
finer

Given the fact that:  With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH.  Answer the question:   Something with less hydrogen ions would have what pH value high or low?
high