DO NOW Draw the hydrologic cycle Label all parts of your diagram.
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DO NOW Draw the hydrologic cycle Label all parts of your diagram
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Hydrologic Cycle
Transcript of DO NOW Draw the hydrologic cycle Label all parts of your diagram.
DO NOWDraw the hydrologic cycleLabel all parts of your diagram
Biogeochemical Nutrient Cycles
Hydrologic Cycle
Reserviors
Residence Times
Biogeochemical Nutrient CyclesNitrogenPhosphorusSulfurCarbon-OxygenHydrologicRock
The nitrogen cycle
The phosphorus cycle
The sulfur cycle
The carbon-oxygen cycle
The hydrologic cycle
The rock cycle
Rock cycle = The heating, melting, cooling, breaking and reassembling of rocks and minerals
Rocks help determine soil chemistry, which influences ecosystems
Helps us appreciate the formation and conservation of soils, mineral resources, fossil fuels, and other natural resources
Newton’s LawsConservation of Mass – mass cannot be created or destroyed, but can be changed to energy
Newton’s Laws - FirstThermodynamics – inertia – an object in motion stays in motion unless acted upon by an outside force
Newton’s Laws - SecondThermodynamics – entropy– disorder increasesThink of entropy as heat lossWe must add more energy to compensate for the heat loss
Hypoxia and the Gulf of Mexico’s Dead Zone (Read pp202-203)Observations: low oxygen levels - hypoxiaHypothesis: caused by nutrients (fertilizers)
that ran into the Gulf from riversExperiments: monitoring oxygen (long
term), water sampling (N, NaCl. Bacteria, phytoplankton); observed life; analyzed historical data
Results: phytoplankton receiving too much phosphorus from farming & sewage treatment plants
