Why are house keys usually made of metal rather than glass, wood, or fabric what common material or flip-flops usually made of? why? what other materials work? Why or why not?

because if not metal than other things like glass wood or fabric would break or not be suitable for the key hole.

Explanation:

flip flops are made of plastic.

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in