Are EarthSS 1, EarthSS 25 and Uni Stu 13A the same class?
Earth System Science 1: The Physical Environment, Earth System Science 25: Intro to Earth and Environmental Science, and University Studies 13A: Environmental Studies 1 are not the same class, but they are similar enough that they can be substituted for one another.
The catalogue indicates that ESS 1 and ESS 25 cannot both be taken for credit. If you take ESS 1 before you become an ESS major, speak with your academic counselor about substituting ESS 1 for the major's ESS 25 requirement. Similarly, University Studies 13A (Environmental Studies) can be substituted for the ESS 25 major requirement.
Speak with your academic counselor to confirm you've completed the necessary course requirements.