Biological energy is frequently stored and released by means of redox reactions. Photosynthesis involves the reduction of carbon dioxide into sugars and the oxidation of water into molecular oxygen. The reverse reaction, respiration, oxidizes sugars to produce carbon dioxide and water.
The nearest major airport is Forbes Field (FOE / KFOE). This airport has domestic flights from Topeka, Kansas and is 33 miles from the center of University of Kansas.
Another major airport is University of Illinois Willard Airport (CMI / KCMI), which has domestic flights from Champaign, Illinois and is 102 miles from Purdue University. Fort Wayne International Airport (FWA / KFWA) has domestic flights from Fort Wayne, Indiana and is 111 miles from Purdue University.