| http://www.w3.org/ns/prov#value | - eral Office of Science and Technology Policy.The multiagency assessment said that incidents of hypoxia ??? a condition in which oxygen levels drop so low that fish and other animals are stressed or killed ??? have risen nearly 30-fold since 1960 due in part to man-made pollutants.It called for renewed efforts to reduce water pollutants that lead to low levels of dissolved oxygen and improve strate
|
