That he will be appointed to the job is certain (identify the noun clause)

That he will be appointed to the job is certain.

It is Noun Clause.

Noun clauses do not act as modifiers; rather, they replace nouns in sentences from subjects to objects to subject complements. ... Remember, noun clauses do not act as modifiers; rather, they replace nouns in sentences from subjects to objects to subject complements.

wheres the passage bud xd

explanation:

well basically since ima beginner people will answer any subject "right away"and if you get more points you could ask more questions or if you answer someone's question you get points