Sphere

By /
« Back to Glossary Index

[sfeer]
An independent part of the system that is interconnected to other spheres by cycles and processes. The four spheres on Earth include the atmosphere, biosphere, geosphere, and hydrosphere.

Related Articles:
  • Glossary: Geosphere
    A sphere that is comprised of the molten rock and solid parts of the Earth, including the continental and oceanic crusts and all of the layers of Earth’s interior; one of the four spheres on Earth.  
  • Glossary: Hydrosphere
    A sphere that is comprised of all water and ice that is on the Earth’s surface (e.g., oceans, lakes, rivers, glaciers), underground, and in the atmosphere; one of the four spheres on Earth.  
  • Glossary: Biosphere
    A sphere that contains all living things on Earth and the environments that support them; one of the four spheres on Earth.  An ecological level of organization.
« Back to Glossary Index
Scroll to Top