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!
It means extraordinarily good or wonderful.
Reading about other conflicts can help you solve yours. It can also teach you to help other people's conflicts.
