Question

hown as Simono
The portion of land, air and water that is occupied by living organisms
is known as​

Answer 1

Answer:

Earth Spheres. Everything in Earth'ssystem can be placed into one of four major subsystems: land, water, livingthings, or air. These four subsystems are called “spheres.” Specifically, they are the lithosphere (land), hydrosphere (water), biosphere (living things), and atmosphere (air).