Ask your own question, for FREE!
Biology 16 Online
OpenStudy (anonymous):

Which object is a system made up of subsystems A. Mineral B. Rock C. Earth D. Box

OpenStudy (anonymous_user):

I think that it's C. Earth.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!