Changes

Spaces in the [[soil]] which determine how much [[water]] and [[air]] the soil contains.<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia

Spaces in the [[soil]] which determine how much [[water]] and [[air]] the soil contains.<ref>Wile, Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998.</ref>

Educational Ministries, Inc. 1998</ref>