The full box is harder to move because it has greater mass and therefore greater inertia.  Having read the above passage, choose the right answer to the following question (choices are harder or easier ):   Rita added less food to the box. It is now harder or easier to move?
easier

When a person smokes there are chemicals released by the tobacco that enter the lungs. Because the lungs have to work harder to remove the chemicals, the body has to work harder to get the air needed to survive.  Having read the above passage, choose the right answer to the following question (choices are increase or decrease ):   If Mona is a smoker, but decides to stop smoking, what happens to the difficulty her lungs experience in removing chemicals from the air increase or decrease?
decrease

Muscles that are exercised are bigger and stronger than muscles that are not exercised.  Having read the above passage, choose the right answer to the following question (choices are Jimbo or James ):   Jimbo liked to work out a lot, while James never worked out. Which person would have weaker muscles Jimbo or James?
James