Final answer:
The worldview element that deals with the existence (or nonexistence) of God is Theology.
Step-by-step explanation:
The worldview element that deals with issues related to the existence (or nonexistence) of God is Theology. Theology is the study of religious beliefs and doctrines, including the belief in God and the exploration of questions surrounding God's existence, nature, and attributes.
Within the subject of Philosophy of Religion, students examine various philosophical arguments for and against the existence of God and explore different religious perspectives on the nature of God.