Phosphorus cycle is a sedimentary/gaseous cycle.

Explanation

To determine whether the phosphorus cycle is a sedimentary or gaseous cycle, we can analyze the characteristics and processes involved in the cycle. Here’s a step-by-step breakdown:

### Step 1: Understanding the Phosphorus Cycle
The phosphorus cycle involves the movement of phosphorus through different environmental compartments, including rocks, soil, plants, animals, and water bodies. Unlike other biogeochemical cycles, phosphorus does not have a significant gaseous phase.

### Step 2: Phosphorus Sources
Phosphorus primarily originates from rocks. Weathering of these rocks releases phosphate ions into the soil and water. This process is a key aspect of the sedimentary nature of the phosphorus cycle.

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