The hydrologic, carbon, nitrogen, and phosphorus cycles are essential to what sphere? biosphere asthenosphere lithosphere hydrosphere
(See answer below)
... hydrosphere, lithosphere, and biosphere. ... (carbon, nitrogen, phosphorus, and sulfur) ... [ What is the hydrologic cycle? www.answers.com/topic/biogeochemical-cycle ]
(See complete conversation and new answers below)
There are no new answers.