Make one comparison between the moral condition of the world at the time of the Flood with our day. Only One Short explanation.

The answer is  a.first and third quarters 

Answer(a)   the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other