Kristin decides to do an experiment to determine which type of sock absorbs the most sweat. which of these describes her doing step four of the inquiry process

Answer///air resistance,drag;

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