http://en.wikipedia.org/wiki/Plant_litter From Wikipedia, the free encyclopedia Leaf litter, mainly White Beech, Gmelinaleichhardtii, from Black Bulga State Conservation Area, NSW, Australia Litterfall, plant litter, leaf litter, tree litter, soil litter, or duff, is dead plant material, such as leaves, bark, needles, and twigs, that…
Environmental Effects USDA Forest Service Southern Region, February 1989; Technical Publication R8-TP 11 Prescribed burning has direct and indirect effects on the environment. Proper use of prescribed fire, and evaluation…
https://en.wikipedia.org/wiki/Water_distribution_on_Earth From Wikipedia, the free encyclopedia A graphical distribution of the locations of water on Earth Visualisation of the distribution (by volume) of water on Earth. Each tiny cube (such…