Yes, it can melt and become permanently dried and embedded in the threads.
A chemical change :).
Molecules permanently change. In a physical change the effects are reversible.
Nobody knows
You can permanently change your eye color by getting eye surgery
You cannot change cylinders. They are permanently cast into the block.
Wait 4-6 weeks after getting a lip piercing to change the jewelry in it
TO permanently remove your mi33 id you have to go to settings under change mobile number or email. Once there do not activate the code and then your account should be deleted permanently.
If you can access the account at all, you don't need to permanently delete it - just change the password.
Forces or something?
To take it off permanently, any time. To take it off just to change it/clean it, it's best to wait at least 6 weeks and don't leave it out for long. After a couple months you can take it out for a couple hours at a time, but they do tend to close quickly.
Hair is constantly growing in your natural colour so no dye could permanently change your root colour.