Molecular motion is a measure of the movement of the molecules in a substance. molecular motion is substantially different between the different states of matter. for example, the molecules in move more than the molecules in a. air, wood b. wood, air c. soda, air d. wood, soda

Generally speaking, the level of molecular motion is highest in gases, where molecules move around freely in space, bouncing off of each other, and lowest in solids, where molecules are bound together in a rigid structure. As such, the answer would be A; "the molecules in air move more than the molecules in wood".