Biology

True.

The phosphorus cycle does not have a significant gas phase. Unlike the carbon, nitrogen, or sulfur cycles, where gases like carbon dioxide (CO₂), nitrogen (N₂), and sulfur compounds play major roles in the cycling process, phosphorus primarily cycles through solid and liquid forms in the environment.

Phosphorus exists mostly in the form of phosphate (PO₄³⁻) in rocks, soils, and water. It is released into the environment through processes like weathering of rock...