Biogeochemical Cycles Worksheet
Explore the fundamental biogeochemical cycles, including carbon, nitrogen, phosphorus, and water cycles, and their importance in maintaining Earth's ecosystems.
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Biogeochemical Cycles
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Read each question carefully and answer to the best of your ability. This worksheet covers key concepts related to biogeochemical cycles.
1. Which of the following processes converts atmospheric nitrogen into ammonia, making it usable by plants?
Denitrification
Nitrification
Nitrogen Fixation
Ammonification
2. The primary reservoir for phosphorus in the biosphere is:
Atmosphere
Oceans
Sedimentary rocks
Living organisms
3. The process by which water vapor in the atmosphere cools and condenses to form clouds is called .
4. Humans contribute to an excess of carbon dioxide in the atmosphere primarily through the burning of .
5. Briefly explain the role of decomposers in the carbon cycle.
6. Describe one significant human impact on the nitrogen cycle and its ecological consequences.
7. Evaporation is the process by which water changes from a liquid to a gas.
True
False
8. The phosphorus cycle is unique because it does not involve a significant atmospheric phase.
True
False
9. Analyze the diagram below, which illustrates a generic biogeochemical cycle.
a) Identify two major reservoirs shown in the diagram.
b) Describe one process depicted that transfers matter between these reservoirs.
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