Haha I happened to take both courses last year in my second semester
2C03 is fun, but like was stated above, you need to be in class since the online notes are missing certain examples that she requires on exams.
2GG3 isn't too hard, the tests/exams are all long asnwer though, it's about 5 questions and you have to be able to explain in detail about certain natural disasters/calamities - if you attend lecture, read the book and understand natural processes, you should be fine! I screwed up the midterm REALLY badly and hardly passed because I wasn't used to exams like this but i studied pretty hard for the exam and came out with an 85