Most people are comfortable with the idea of a noun, but they may not feel so confident when it comes to the noun clause. A noun clause is a group of words acting together as a noun. These clauses are always dependent clauses. That is, they do not form a complete sentence. Take a look at some sample sentences containing noun clauses to understand their purpose and function.
answer:it shows that he was convinced that Fred (his son-in-law) was capable of running the project, in addition to believing that family businesses are successful.