Can sterility be reversed?

well what do you mean reversed

Yes you can reverse it by pouring back the acid.

If you are female it means that you cannot get pregnant and if you are male it means that you cannot get someone pregnant.

A living will can be revoked by its maker. However, if original copies of the living will were distributed they must be recalled and destroyed. The maker can make a new, dated living will and state...

No, it's permanent.