Fluor apatite is a rich source of
A. Nitrogen
B. Phosphorus
C. Potassium
D. Molybdenum
Answer: Option B
A. Nitrogen
B. Phosphorus
C. Potassium
D. Molybdenum
Answer: Option B
Sources of negative charges on silicate clays is/are
A. Exposed crystal edges
B. Isomorphus substitution
C. Anion exchange
D. All of these
The most conspicuous chemical change that take place when soil is flooded is reduction of
A. Fe
B. P
C. S
D. None of these
Join The Discussion