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Posted by on Wednesday, March 25, 2009 at 3:57pm.

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.

  • Physical Geology - , Wednesday, March 25, 2009 at 4:04pm

    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.

  • Physical Geology - , Wednesday, March 25, 2009 at 4:21pm

    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?

  • Physical Geology - , Wednesday, March 25, 2009 at 4:27pm

    Check this site.

  • Physical Geology - , Friday, December 3, 2010 at 7:03pm

    What is one thing that humans get from each of the spheres?

    The spheres are the biosphere, atmosphere, hydrosphere, and lithosphere.

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