RECYCLING IN THE BIOSPHERE. Biogeochemical Cycles: 1. water cycle 2. carbon cycle 3. nitrogen cycle 4. phosphorus. The Carbon Cycle. http://earthobservatory.nasa.gov/Library/CarbonCycle/carbon_cycle4.html. Movement of carbon into plants for photosynthesis.
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1. water cycle
2. carbon cycle
3. nitrogen cycle
Four main types of processes that move carbon through the carbon cycle:
1. biological processes – PS, CR, decomposition
2. geochemical processes – erosion, volcanic activity
3. mixed biogeochemical processes – burial and decomposition of
dead organisms fossil fuels
4. human activities – burning fossil fuels, cutting/burning forests
Interpret the map:
Living organisms use nitrogen to make DNA, RNA, proteins
ammonia (NH3) nitrate (NO3-) nitrite (NO2-)
Satellite image of eutrophication
of the northern Caspian Sea