Phosphorus and nitrogen ions generally get depleted in soil because they usually occur as

Options

A. neutral ions
B. negatively charged ions
C. positively charged ions
D. both positively and negatively charged but disproportionate mixture

Answer

B

Explanation

In the soild, phosphorus and nitrogen are present as negatively charged ions, e.g., `H_(2)PO_(4)^(-),NO_(2)^(-),NO_(3)^(-)` ions. These are usually supplied by fertilisers as urea.