Roots need oxygen because they must respire to produce energy for growth and normal function. Plants make food in the leaves through photosynthesis, but roots cannot do this. Instead, root cells use Duke Energy is building a floating solar farm on a cooling pond in Bartow Fischer Tropes GTL (Gas to Liquid Reactor) 1000 BPD DS Smith and Eon subsidiary SEA to build RDF power plant in Aschaffenburg, Germany Sara Sderman Indoor Garden