Our planet has four spheres: the lithosphere, biosphere, atmosphere, and hydrosphere. This clip provides an overview of vital biogeochemical cycles that occur across the four spheres, including the nitrogen, phosphorous, water, and carbon cycles. It is an excellent resource for middle-to upper-level students of biology and other natural sciences.

Originally released by ClickView/VEA, 2018. Streaming video file encoded with permission for digital streaming by Infobase on December 07, 2018.

Biogeochemical Cycles (10:46);.