The ground wire is attached to my clothes dryer, but I don’t know where to attach the other end as it fell when I pulled dryer out—I don’t know where it fell off?!
With grounding (and life) it depends. In the US, if it's a gas dryer you can get a ground clamp to the gas pipe connection. Assuming your home is properly grounded to the outlets, you can purchase a ground adapter for an outlet. The idea here is to dispell static buildup and provide an emergency path for electricity to take that isn't through you.