Biological engineers find the sustainable solutions needed to supply a growing world population with food, fiber, water, and energy under increasing environmental constraints. For instance, biological engineers develop advanced machinery systems utilizing robotics and precision techniques for agricultural crop production; design processing lines to produce safe, high-quality foods; develop biologically-based green products; and design environmentally sound solutions to protect water quality. Biological engineering students specialize by choosing one of these options: Agricultural Engineering, Food and Biological Process Engineering, or Natural Resource Engineering.