Question

why do they need foot prints​

Answer 1

Answer:

can help the forensic scientist in cases pertaining to criminal identification. In some forensic cases, the need may also arise to estimate body weight from the size of the footprints. Footprints have been shown to have determine the height and the sex of the individual.

Answer 2

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The main purposes of a footprint are to protect the floor of your tent from abrasive objects (like sticks, roots, and rocks), to keep your tent clean of mud and tree sap, and to help you determine a good spot to pitch your tent.