Geology deals with the physical, chemical, and biological study of the earth from its conception to the present day. A background in earth science not only increases the general student's appreciation of the world, but also increases the depth of understanding of a science student's own field. Serious students of geology find opportunities in the environmental, petroleum, mining, teaching, engineering, and geophysics fields, and in hydrology, space science and oceanography. Whitman offers a major in geology, geology combined with environmental studies, geology combined with physics, geology combined with biology, geology combined with chemistry, and geology combined with astronomy. In addition, students can also elect to minor in geology.