Questions and Answers
What is the purpose of the biogeochemical cycles?
to recycle matter through the biosphere
What is the name of the process that plants use to remove carbon from the atmosphere?
photosynthesis
Which statement best describes a human influence on the biogeochemical cycles?
increased eutrophication caused by high levels of nitrogen and phosphorous
How does Thiobacillus denitrificans help bioremediate groundwater?
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What would happen if there was no condensation stage in the water cycle?
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Which process allows water to enter the atmosphere?
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What are the long-term storage areas for carbon and other nutrients called?
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How does the phosphorus cycle differ from the biogeochemical cycles?
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Which of these nutrients can be found in all organic compounds?
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Which best describes the negative impact of human water use?
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Which part of the carbon cycle does the breakdown of organic material describe?
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What would be a result of eutrophication of nitrogen?
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Which are limiting nutrients for plant growth?
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Plants use the process of__________ to remove carbon dioxide from the air.
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Osteoporosis is most likely to be affected by which cycle?
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Study Notes
Biogeochemical Cycles
- Serve the essential purpose of recycling matter through the biosphere.
- Human activity can lead to increased eutrophication, notably from excessive nitrogen and phosphorus.
Photosynthesis and Carbon Cycle
- Plants utilize photosynthesis to absorb carbon dioxide from the atmosphere.
- Actinobacteria sp. contribute to the decomposition phase of the carbon cycle by converting organic materials into inorganic forms.
Water Cycle
- Evaporation is the critical process that allows water to transition from liquid to gas, entering the atmosphere.
- Absence of the condensation stage would prevent water from changing from gas to liquid.
Storage of Nutrients
- The ocean and atmosphere act as long-term reservoirs for carbon and other nutrients.
- Phosphorus cycle is unique as it lacks an atmospheric reservoir, differentiating it from other biogeochemical cycles.
Nutrient Dynamics
- Carbon is a fundamental element found in all organic compounds.
- Phosphorus and nitrogen are identified as limiting nutrients necessary for plant growth.
Human Impact on Water Systems
- Increased runoff due to human water use carries fertilizers, contributing to negative ecological impacts like nutrient overloads.
Eutrophication Effects
- Eutrophication from nitrogen can result in hypoxia, characterized by low oxygen levels in water bodies, affecting aquatic life.
Osteoporosis and Nutrient Cycles
- Osteoporosis, a condition that increases the risk of bone fractures, is influenced by the phosphorus cycle, emphasizing the interconnectedness of nutrient cycles and human health.
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Description
Test your knowledge on the key concepts of biogeochemical cycles with this quiz. Learn about the recycling of matter in the biosphere, the role of photosynthesis, and human impacts on these essential processes. Perfect for students studying environmental science.
