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.
âThatâs now better for sure.â The debate is no longer whether plants can sense one anotherâs biochemical messages â they can â but about why and how they do it. Most studies have taken place under controlled lab conditions, so one of the major open questions is to what extent plants use these signals in the wild.Itâs pretty spectacular what plants do,â said Farmer. âThe more I work on them, the more Iâm amazed.â. Farmerâs study doesnât mean that plants have neurons, or brains, or anything like the systems that animals use to communicate.