The following are the five major spheres of the Earth:
1. Geosphere: It comprises Earth's mantle, crust, and core, that is, the solid proportion of the Earth.
2. Biosphere: It comprises all the species on Earth, as well as, the environments in which they thrive.
3. Atmosphere: It comprises the gases surrounding the Earth.
4. Cryosphere: It comprises the ice sheets of Earth as well as the environments in which they thrive.
5. Hydrosphere: It comprises the water in Earth's seas, oceans, glaciers, rivers, lakes, and atmosphere.