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1. In the diagram above, add arrows and labels to show the following activities: a) Release of carbon from respiration in the marine food chain b) Mining and burning of coal c) Burning plant material 2. Describe the biological origin of the following geological deposits of coal/oil: ________________________________ __________________________________________________________________________________ _____________ 3. Describe the two processes that release carbon in the atmosphere: _______________________________________

kennedyapes.weebly.comkennedyapes.weebly.com/.../revised_cycles_packet.docx · Web view1.In the diagram above, add arrows and labels to show the following activities: Release of carbon

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Page 1: kennedyapes.weebly.comkennedyapes.weebly.com/.../revised_cycles_packet.docx · Web view1.In the diagram above, add arrows and labels to show the following activities: Release of carbon

1. In the diagram above, add arrows and labels to show the following activities:a) Release of carbon from respiration in the marine food chainb) Mining and burning of coalc) Burning plant material

2. Describe the biological origin of the following geological deposits of coal/oil: ________________________________

_______________________________________________________________________________________________

3. Describe the two processes that release carbon in the atmosphere: _______________________________________

_______________________________________________________________________________________________

_______________________________________________________________________________________________

4. Name the four geological reservoirs (sinks), from the diagram above, that can act as a source of carbon:

a) ___________________________________________ c) ___________________________________________

b) ___________________________________________ d) ___________________________________________

Page 2: kennedyapes.weebly.comkennedyapes.weebly.com/.../revised_cycles_packet.docx · Web view1.In the diagram above, add arrows and labels to show the following activities: Release of carbon

5. Explain what would happen to the carbon cycle if there were no decomposers present in an ecosystem:

_______________________________________________________________________________________________

_______________________________________________________________________________________________

6. In natural circumstances, accumulated reserves of carbon as soil, coal, and oil represent a sink or natural diversion from the cycle. Eventually, the carbon in these sinks returns to the cycle.

a) Describe three human activities that affect these sinks in the carbon cycle: ______________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

b) Explain two global effects arising from this activity: _________________________________________________

____________________________________________________________________________________________

____________________________________________________________________________________________

Page 3: kennedyapes.weebly.comkennedyapes.weebly.com/.../revised_cycles_packet.docx · Web view1.In the diagram above, add arrows and labels to show the following activities: Release of carbon

1. Describe five instances in the nitrogen cycle where bacterial action is important. Include the name of the processes and the changes to the form of nitrogen involved:

a) ____________________________________________________________________________________________

____________________________________________________________________________________________

b) ____________________________________________________________________________________________

____________________________________________________________________________________________

c) ____________________________________________________________________________________________

____________________________________________________________________________________________

d) ____________________________________________________________________________________________

____________________________________________________________________________________________

e) ____________________________________________________________________________________________

____________________________________________________________________________________________

Page 4: kennedyapes.weebly.comkennedyapes.weebly.com/.../revised_cycles_packet.docx · Web view1.In the diagram above, add arrows and labels to show the following activities: Release of carbon

2. Identify two natural processes that fix nitrogen:

a) ___________________________________________ b) ___________________________________________

3. Name the main geological reservoir that provides a source of nitrogen: _____________________________________

4. State the form in which nitrogen is available to most plants: ______________________________________________

5. Name a vital organic compound that plants need nitrogen containing ions for: _______________________________

6. Describe how animals acquire the nitrogen they need: ___________________________________________________

_______________________________________________________________________________________________

7. Describe ways in which humans may intervene in the nitrogen cycle: _______________________________________

_______________________________________________________________________________________________

_______________________________________________________________________________________________

_______________________________________________________________________________________________

Page 5: kennedyapes.weebly.comkennedyapes.weebly.com/.../revised_cycles_packet.docx · Web view1.In the diagram above, add arrows and labels to show the following activities: Release of carbon

1. In the diagram, add a labeled arrow to show where one human activity might intervene in the phosphorous cycle.

2. Name two types of molecules found in living organisms which include phosphorous as a part of their structure:

a) ___________________________________________ b) ___________________________________________

3. List the origin of three forms of inorganic phosphate making up the geological reservoirs (sinks):

a) ____________________________________________________________________________________________

b) ____________________________________________________________________________________________

c) ____________________________________________________________________________________________

4. Describe the processes that must occur on order to make phosphates stored in rocks available to plants again:

_______________________________________________________________________________________________

5. Identify one major difference between the phosphorous cycle and the carbon/nitrogen cycles:

_______________________________________________________________________________________________

Page 6: kennedyapes.weebly.comkennedyapes.weebly.com/.../revised_cycles_packet.docx · Web view1.In the diagram above, add arrows and labels to show the following activities: Release of carbon

1. Describe two ways in which sulfur can enter the atmosphere from natural sources:

a) ___________________________________________ b) ___________________________________________

2. Describe two ways in which sulfur can enter the atmosphere as a result of human activity:

a) ___________________________________________ b) ___________________________________________

3. Describe three processes that make sulfur in the soil available to uptake by plants:

a) ____________________________________________________________________________________________

b) ____________________________________________________________________________________________

c) ____________________________________________________________________________________________

4. Describe two major roles of sulfur in the biosphere:

a) ___________________________________________ b) ___________________________________________