Explanation: Well, A noun clause is a dependent clause that acts as a noun.They begin with words such as how, that, what, whatever, when, where, whether, which, whichever, who, whoever, whom, whomever, and why... they can also act as subjects, direct objects, indirect objects, predicate nominatives, or objects of a preposition.
Answer:
<em>It's</em><em> </em><em>indicates</em><em> </em><em>about</em><em> </em><em>Mathematical</em>
The Egyptians and Greeks believed that mental illness was a result of supernatural forces. In using strong smells, they hoped to drive out evil spirits inhabiting the body.
Hope this helps! :)