posted by A.W. .
The Earth is a sysytem that is comprised of four subsystems. How do these four subsystems interact with one another? And identify one type of resource from each subsystem on which people depend.
A.W., We do not do your homework for you. After you have done some reading and writing, please repost and we will be happy to make further suggestions/corrections as needed.
GuruBlue, I know that the four subsystems are also called spheres; that they are the lithosphere, the biosphere, the atmosphere, and the hydrosphere. And with out them Earth and we as the people of Earth would not survive. Hows that?
Check this site.
What is one thing that humans get from each of the spheres?
The spheres are the biosphere, atmosphere, hydrosphere, and lithosphere.