Uranium is a radioactive element that is used to create nuclear energy.

Predicate Noun <---

The verb in that dependent clause is "is used" <~~Is that an action verb or a linking verb? What follows an action verb? What follows a linking verb?

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In this sentence, the predicate "is used to create nuclear energy" describes the action or function of the subject "uranium." The noun "nuclear energy" is the object of the verb "create," indicating what uranium is used for.