What property of these items do cm or mm measure: length, volume, mass or temperature?

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

A. burning woodcombustion is the process of burning something. make brainliest if correct