1-Explain the term model , and describe how models can help us understand our complex physical world
Fully describe the concepts of feedback and equilibrium .provide an example from a natural system
Name and fully describe each of the four great physical realms of the earth . what is the life layer ?
Describe the process of subduction as it occurs at a convergent boundary of a continental and oceanic lithospheric plates .how is subduction related to volcanic activity ?
suppose astronomers discover a new planet that , like the earth , has continents and oceans . They dispatch a reconnaissance satellite to photograph the new planet .what features would you look for , and why , to detect past and present plate tectonic activity on the new planet........