I want to test the ability of students to read a passage and answer questions about it. Could you please come up with a good question for the passage "The normal force is due to repulsive forces of interaction between atoms at close contact. When their electron clouds overlap, Pauli repulsion (due to fermionic nature of electrons) follows resulting in the force that acts in a direction normal to the surface interface between two objects.:93 The normal force, for example, is responsible for the structural integrity of tables and floors as well as being the force that responds whenever an external force pushes on a solid object. An example of the normal force in action is the impact force on an object crashing into an immobile surface."? 

Normal force is responsible for furniture being able to stand upright even if weight is placed on it, an example of such furniture listed in the passage are?