I majored in environmental science, but had to modify my degree a bit to fit the requirements for graduate school. The department only requires basic physics, but I took the calculus based one. All my core and elective classes were chemistry based (e.g. Atmospheric geochemistry) or just chemistry or chemical engineering classes. Then because I wanted to make sure I was hitting ALL requirements, I also minored in chemistry and took 2 thermo classes, quantum chemistry, fluids, and overlapped 2. Admission committees are so picky about their requirements and since I have a crappy overall gpa from freshman year, I really wanted to show I was prepared. They accept people from various backgrounds so if you're not completely on par with all their requirements, that doesn't mean you won't get accepted anywhere. At least that's what I've been telling myself lol.