An incredibly detailed bundle containing the Biogeochemical cycles in nature - Water, Oxygen, Carbon and Nitrogen. The set contains 106 images, 53 are colored and 53 are black and white line diagrams. The image resolution is 300dpi and are on a transparent background.I would highly recommend my Pollution Bundle: Causes, Effects, Solutions Clip Art, which perfectly compliments this package, and is done in the the same style. It can highlight the human impact on the Nitrogen cycle, and the effect