Haven't taken Earth Sci 2GG3 but I took 2WW3 this past year and honestly, it is such an easy course. Although the content can be dry at times, it's fairly easy to grasp. There are quizzes after every lecture and they're open for a week so you have plenty of time to finish them. There's only 1 assignment, but its pretty straight forward and shouldn't take you more than 4-5 hours to do. The exam is cumulative but very straight forward. It's a good class to take if you already have a heavy workload b/c you don't have to put much thought/effort into it.
