In Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through both biotic ...
Apr 1, 2015
(bī'ō-jē'ō-kěm'ĭ-kəl) The flow of chemical elements and compounds between living organisms and the physical environment. Chemicals absorbed or ingested by ...
Did you know that all elements are recycled over and over again on earth? In this
lesson we will learn about the
Oct 3, 2012
When you talk about the "circle of life," the circle to which you are referring is a