B. Hydrosphere - water distribution and movement across the earth, from clouds, to lakes and streams, to ocean basins, to clouds again by evaporation and condensation. C. Biosphere - the plants and animals that collectively comprise life on earth. Learn distribution of basic soil and vegetation features, and their linkage to the other three spheres. D. Lithosphere - the solid outer shell of the earth' s crust and upper mantle. B. Interactions .
Stress interrelationships among environmental spheres.
Hard to change one thing without changing many others. The earth is constantly changing . Recognize that change is the norm, from time scales of seconds to millions of years. Nothing stays the same forever. The Universe as we know it is comprised of mainly empty space, plus millions of galaxies.