Final answer:
The phosphorus cycle involves the movement of phosphorus through different reservoirs, including the ocean, soil, and marine ecosystems. Phosphorus is released into the soil through weathering of rocks and volcanic activity, and it becomes available to terrestrial food webs. It enters the ocean through surface runoff, groundwater flow, and river flow, and is cycled into marine food webs.
Step-by-step explanation:
The phosphorus cycle involves the movement of phosphorus through different reservoirs, including the ocean, soil, and marine ecosystems. Phosphorus is released into the soil through weathering of rocks and volcanic activity, and it becomes available to terrestrial food webs. It enters the ocean through surface runoff, groundwater flow, and river flow, and is cycled into marine food webs. Some of the phosphate from marine food webs falls to the ocean floor, where it forms sediment over time.
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