Well metal detectors can help to save a life in the event that someone has a weapon or is armed, the dectector can sense the metal in a gurn, for example, which can sve lives because if that person meant harm on others, the gun can be detected before somethinf terrible happens. Hope this helps!
I wanna say .Gov. Because it is like the official stuff... you know? Sometimes the .Org's lie and .Com's are not always trustworthy.
Answer: A. Quick and light movement
I'd say 1.A
And 2.C are the correct answers
