Which describes a way in which phosphorus at enter into the phosphorus cycle ?

The phosphorus circle describes the movement of phosphorus through rocks, water, soil and sediments and organisms.
Phosphorus is an essential nutrient, because  it is involved in cell development and is a key component of molecules that store energy, such as ATP (adenosine triphosphate), DNA and lipids (fats and oils).
The phosphorus enters into the phosphorus cycle through rain and weathering. They cause rocks to release phosphate ions and other minerals. This inorganic phosphate is then distributed in soils and water.