What is a fuse wire made of? state its functions

what is a fuse wire made of? state its functions.

Fuse wire is made of zinc, copper, silver, aluminium or alloys.

Functions of fuse wire:
i) Protect the household wiring and electrical appliances.
ii) Prevent fire in the house by avoiding damage to electrical appliances
iii) when too much current flows through the circuit the fuse wire breaks and stops the current flow in the electrical appliances.