The soil surface is covered with the object world is thin layer. Due to the decomposition of the organic crust combined with the water and the air contains. About 45 percent of mineral substances, organic, 5 percent of the air clay tablets or a space of about 25 percent, and water, which are based on the spacing of approximately 25 per cent clay tablets.Soil pollution Mean values from the same soil and pollutants, or has exceeded a phlanamai, as well as the danger to the health and growth of plants and animals, both direct and indirect.
การแปล กรุณารอสักครู่..
