3. An elephant has more mass than a mouse because it O Takes up a larger volume
Is not a pure substance
Has different types of atoms
O Contains more matter

contains more matter

hope it helps

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.