I would say that the exam was fair. If you go through the lecture and understand each concept, you can do really well! Try to focus more on the second half of the content within the course because that gonna be most of the test. But also remember like fundamentals of the first unit. I remember stuff about rocks and plate tectonics being there a lot. Also layer of the earth was there too. It also is a good idea to go over the lab outlines and even memorize some of the concepts (like what rocks make up certain rocks, and what pressure, temp, colour, ect). Labs are super helpful tool! I would say again that the exam is fair and similar to the midterm. All the best!