o polvo

01-07-2009
marcar artigo


Why autumn leaves turn red(a nature sabe umas coisas bonitas)Autumn leaves turn fiery-red in an attempt to store up as much goodness as possible from leaves and soil before a tree settles down for the winter. The worse the quality of soil, the more effort a tree will put in to recovering nutrients from its leaves, and the redder they get.(...)


Why autumn leaves turn red(a nature sabe umas coisas bonitas)Autumn leaves turn fiery-red in an attempt to store up as much goodness as possible from leaves and soil before a tree settles down for the winter. The worse the quality of soil, the more effort a tree will put in to recovering nutrients from its leaves, and the redder they get.(...)

marcar artigo