The Phosphorus Cycle Worksheet
Explore the phosphorus cycle, its stages, importance, and environmental impacts at a Grade 12 level.
Includes
Standards
The Phosphorus Cycle
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Date:
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Read each question carefully and answer to the best of your ability. Show all your work where applicable.
1. Which of the following is the primary reservoir for phosphorus in the biosphere?
Atmosphere
Oceans
Sedimentary rocks
Living organisms
2. Eutrophication is often caused by an excess of which nutrient?
Nitrogen
Carbon
Phosphorus
Sulfur
3. The weathering of releases phosphate into the soil and water.
4. Phosphorus is an essential component of DNA, RNA, and .
5. The process by which plants absorb phosphate from the soil is called .
6. The phosphorus cycle does not involve a significant atmospheric component.
True
False
7. Human activities have no significant impact on the natural phosphorus cycle.
True
False
8. Describe the role of decomposers in the phosphorus cycle.
9. Explain how human activities, such as agriculture, impact the phosphorus cycle.