1. Fig. 3-7, p. 55 Nitrogen cycle Biosphere Heat in the environment Phosphorus cycle Carbon cycle Oxygen cycle Water cycle Ecological Cycles

3. The Water Cycle Figure 3-26

4. Fig. 3-26, p. 72 Precipitation Precipitation Transpiration Condensation Evaporation Ocean storage Transpiration from plants Precipitation to land Groundwater movement (slow) Evaporation from land Evaporation from ocean Precipitation to ocean Infiltration and Percolation Rain clouds Runoff Surface runoff (rapid) Surface runoff (rapid)

7. The Carbon Cycle: Part of Nature’s Thermostat Figure 3-27

8. CARBON CYCLE

10. The Nitrogen Cycle: Bacteria in Action Figure 3-29

11. Nitrogen Cycle

14. The Phosphorous Cycle Figure 3-31

15. Fig. 3-31, p. 77 Dissolved in Ocean Water Marine Sediments Rocks uplifting over geologic time settling out weathering sedimentation Land Food Webs Dissolved in Soil Water, Lakes, Rivers death, decomposition uptake by autotrophs agriculture leaching, runoff uptake by autotrophs excretion death, decomposition mining Fertilizer weathering Guano Marine Food Webs

17. The Sulfur Cycle Figure 3-32

18. Fig. 3-32, p. 78 Hydrogen sulfide Sulfur Sulfate salts Decaying matter Animals Plants Ocean Industries Volcano Hydrogen sulfide Oxygen Dimethyl sulfide Ammonium sulfate Ammonia Acidic fog and precipitation Sulfuric acid Water Sulfur trioxide Sulfur dioxide Metallic sulfide deposits