Question

where is the phosphorus cycle primarily conducted?
in volcanoes & lightning.
in soil & plants.
in air & volcanoes.
in water & atmosphere.

Explanation:

The phosphorus cycle is mainly about the movement of phosphorus through soil, plants, water bodies, and sediments. It has a negligible gaseous component, so it occurs primarily in soil and plants (and also involves rocks, soil, water, and organisms). Among the options, "In soil & plants" aligns with the primary reservoirs and pathways of the phosphorus cycle (unlike cycles like carbon or nitrogen which have significant atmospheric phases).

Answer:

In soil & plants (the green - colored option with text "In soil & plants")