Give the definitions of two-dimensional impressions and three dimensional impressions along with one example of each. Do NOT just give two-dimensional impressions are length and width (and LxWxD for 3-D), write out how each type of impression is made. And for the examples – 2-D: dust impression on paper, tile, or bloody shoe print on carpet, etc. 3-D: shoe print or tire track in mud, snow, sand, etc.
An object like the sole of a shoe will leave a two dimensional impression on a hard surface such as a tiled floor. The impression comes from static charge on the sole transferring particles from the sole to the surface
A three-dimensional impression is made when the surface over which the shoe passed was soft and the sole actually sank into it.