<span>The statement above is true. In fact, according
to Safe Noise Dose Chart, the higher the level of dose exposure, the higher the
risk of damage, this means causing loss of hearing. In other words, the higher
the decibel, the faster the risk of damage.</span>
Even though you didn't underline anything, there is only one pronoun in this sentence - the word them.
The case of this pronoun is objective - it functions as an object in the sentence. It is really easy to determine this - all you have to do is ask the questions <em>whom </em>or <em>what. Whom did the designer dress in black and teal costumes? </em>And the answer is - <em>Them. </em>
This way you know that the pronoun is also the object; to be more specific, it is a direct object.
Therefore, the correct answers are case: objective; function: direct object.
