Abstract
Combustion of fossil fuel also discharges sulfuric acid in proportion to the amount of discharge of carbon dioxide and is accumulated into the atmosphere. On the trees of the passage way of wind sulfuric acid adhere in proportion to the amount of passage wind. Sulfuric acid is dropped on a root by rain.The soil in which sulfuric acid was added dissolves a metal ingredient and becomes a metal ion. A metal ion is absorbed by trees, takes phosphoric acid from a phosphoric acid compound and becomes an insoluble metallic phosphorus acid compound.
Trees become the same phenomenon as the shortage of phosphoric acid and dieback.
