The diving pool at the London Olympics has to be a minimum depth of 4.5 meters, but the preferred depth is 5 meters (16 feet 4 inches).8 people found this useful.he diving pool at the London Olympics has to be a minimum depth of 4.5 meters, but the preferred depth is 5 meters (16 feet 4 inches). 8 people found this useful.
Positive feedback mechanism. A process whereby an initial change in an atmospheric process will tend to either reinforce the process (positive feedback) or weaken the process (negative feedback). See Feedback mechanism.
In this mechanism, the tendency of rubisco (the first enzyme in the Calvin cycle) to photorespire, or waste energy by using oxygen to break down carbon compounds to CO 2, is minimized. Examples of C 4 plants include sugarcane, maize, sorghum, amaranth, etc. Compare: C3 plant, CAM plant. See also: C4 carbon fixation pathway, Calvin cycle. Please contribute to this project, if you have more information about this term feel free to edit this page. This page was last modified on 29 August 2008, at 10:10.This page has been accessed 162,224 times.