How did Apollo become the sun god?

Answer 1

According to the ancient greek apollo impressed zeus ( his father )that he was worthy enough to hold the mighty great power

Answer 2

In Greek mythology, Apollo became associated with the sun because he was often depicted driving a chariot of fiery horses across the sky. This imagery later led to him being considered the god of the sun. Additionally, Apollo was associated with light, truth, and healing, further solidifying his connection to the sun as a source of illumination and warmth.