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Unformatted text preview: • Read the Feature Investigation pp 1255-1256. Explain the findings in your own words. Nitrogen Cycle: Nitrogen is not readily available for use by most organisms. Explain the processes involved in transforming it into a usable form: • nitrogen fixation • nitrification • assimilation How do humans acquire nitrogen? Explain the effects of deforestation on nutrient concentration. (SEE: pp. 1258; figure 59.21) Be sure to explain WHY the cycle is affected and impact. Water cycle: (figure 59.24) 194 What are the two main phenomena responsible for the movement of water within the global ecosystem? Explain the effects of deforestation on water cycle (figure 59.25). Be sure to explain WHY the cycle is affected and impact....
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- Fall '11