Answer:
We call these four subsystems "spheres". Specifically, they are the "lithosphere" (land), the "hydrosphere" (water), the "biosphere" (living beings) and the "atmosphere" (air). Each of these spheres can be divided into sub-spheres.
Answer:
Geographers break down the Earth's systems into four spheres that make up the world's air (atmosphere), water (hydrosphere), land (geosphere), and living organisms (biosphere).
Explanation:
