The possible resource of phosphorus ions and nitrogen ions in soil generally get depleted because they are usually found as

Options

A. Positively charged ions
B. Negatively charged ions
C. A disproportionate mixture of negatively charged ions
D. Particles carrying no charge

Answer

B

Explanation

Nitrogen is absorbed mainly as `NO_3^(-)` from the soil. Phosphorus is absorbed in the form of phosphate ion (either as `H_2PO_4^(-)` or `HPO_4^(2)`)