Half of the moon is always illuminated by the sun. given that this is true, then what causes the moon to change phases throughout the month? give a detailed explanation, .

Iwannasay c is the most accurate

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