Give at least three examples of how evidence may be destroyed by onlookers at a crime scene.

Three examples of how evidence may be destroyed by onlookers at a crime scene are these:

1) Onlookers may walk through the crime scene that may destroy the footprints of the criminal or the victim.

2) Onlookers may enter the crime scene and touch some item which will result in destroying the fingerprints found there.

3) Onlookers may touch, take, move around or change an object from the crime scene contaminating / destroying any fibers or hair which may come handy during investigation.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.

answer; /// decreasing responsiveness to a stimulus to which one is repeatedly exposed;