Question

(iii) No other metal is as useful as iron.
)
(Begin : Iron is_)​

Answer 1

Answer :

Iron is the most useful metal.

Extra Information :

The superlative degree of comparison is mainly used to show which of the nouns in a particular context has the greatest or least degree of the quality mentioned. It is the highest degree of comparison and is used to compare three or more nouns or pronouns.