What can a gun do?

Answer 1

A gun can either save a life or destroy a life.

It depends on what you mean, and the previous answer is incomplete. Guns have various uses. Some people hunt with them, some people collect them, some people use them for target practice, some people use them to compete in shooting sports, and some people use them for self defense, some people use them to rob or attack other people, or to kill people.

And a point to remember- by itself, a gun does nothing. It is a man made object, neither good nor bad, and cannot act on it's own. For a gun to do anything, it requires the action of a person.

Well said. It is a Tool. Same as a chainsaw, car, etc.