One way to create shadow effects in footprints on light-colored soil or snow is to use:

Question

Quizplus · Accepted Answer

Black primer spray paint can be used to create shadow effects in footprints on light-colored soil or snow. By spraying a light mist of black primer over the area surrounding the footprints, the footprint will appear more pronounced and create a shadow effect. This technique is often used in crime scene investigation to help visualize the path of the perpetrator. Yard fertilizer, measuring tape, or chalk would not be effective for creating shadow effects in footprints.

One Way to Create Shadow Effects in Footprints on Light-Colored