Anjali- AP Enviromental- Chapter 5

Anjali- AP Enviromental- Chapter 5 - APES Ch. 5 Notes- The...

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APES Ch. 5 Notes- The Biogeochemical Cycles 5.1 Notes 1. How Chemicals Cycle a. General Information i. Biochemical cycle- the complete path a chemical takes through the 4 major components, or reservoirs of Earth’s system: atmosphere, hydrosphere (oceans, rivers, lakes, groundwaters, and glaciers) lithosphere (rocks and soil) and biosphere (plants and animals). ii. A biogeochemical cycle is a chemical because it is chemicals that are cycled, bio-because it involves life, and geo- because it may include atmosphere, water, rocks, and soils. iii. Chemical Reaction - a process in which new chemicals are formed from elements and compounds that undergo a chemical change. 5.2 Notes 2. Environmental Questions and Biogeochemical Cycles a. General Information i. Biological- 1. What factors, including chemicals necessary for life, place limits on the abundance and growth of organisms and their ecosystems? 2. What toxic chemicals might be present that adversely affect the abundance and growth of organisms and their ecosystems? 3. How can people improve the production of a desired biological resource? 4. What are the sources of chemicals required for life, and how might we make these more readily available? 5. What problems occur when a chemical is too abundant? ii. Geological- 1. What physical and chemical processes control the movement and storage of chemical elements in the environment? 2. How are chemical elements transferred from solid earth to the water, atmosphere, and life-forms? 3.
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This note was uploaded on 09/15/2011 for the course ENVIRON 100 taught by Professor Staff during the Spring '11 term at UC Irvine.

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Anjali- AP Enviromental- Chapter 5 - APES Ch. 5 Notes- The...

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