Geographers study the physical properties of the earth's surface and the distribution of life on earth, including humans and the effects of human activity. Students may focus on world regions and cultures, urban planning, or interaction between people and the environment. Students learn to analyze data, use cartographic and geographic information systems, and work in the field and in remote-sensing laboratories. Internships are integral to the major. Course credit and on-the-job experience can be earned in Tucson's top private-sector firms and government agencies. A teaching major is also offered, leading to certification to teach in Arizona public schools.