Will UCR rescind me over a D

<p>My eldest son is a sophomore Geology major at Cal State Sacramento and has told me that while there are upper division Geology courses such as Geophysics, Petrology and Geochemistry that can be fairly challenging and the prerequisites for the major, Calc1, Calc 2, Calc 3, three semesters of Calculus based Physics and two semesters of Chemistry dissuade many students from this major, the Introductory courses that would be found at a CCC are not that difficult. They usually consist of Introductory Physical Geology with lab and Historical Geology with lab. While Geology majors do have to take these courses, they are primarily intended for non-majors who need a physical science lab course to meet their distribution requirements but who do not have the math skills to take Physics. </p>

<p>I can not help but wonder what this Geology course the OP is taking is and why it is so difficult.</p>