Match List I with List II

List I (Fertilizer)	List II (Percentage of Nitrogen)
a. Urea	I. 0% N
b. Sodium Nitrate	II. 46% N
c. 0-16-12	III. 16% N
d. Diammonium Phosphate (DAP)	IV. 18% N

Choose the correct answer:

Correct option is A

Matching Fertilizers with Nitrogen Percentages:
a. Urea → II. 46% N
✅ Urea is the most concentrated solid nitrogen fertilizer.
Contains 46% nitrogen, commonly used across all crops.
b. Sodium Nitrate → III. 16% N
✅ Sodium nitrate (NaNO₃) contains about 16% nitrogen, all in nitrate form.
Quickly available to plants.
c. 0-16-12 → I. 0% N
✅ The first number (Nitrogen) is 0, meaning it has no nitrogen content.
Mainly provides phosphorus (16%) and potassium (12%).
d. Diammonium Phosphate (DAP) → IV. 18% N
✅ DAP contains 18% nitrogen and 46% phosphorus (P₂O₅).
A widely used basal fertilizer.
Final Matching:
· a → II (46% N)
· b → III (16% N)
· c → I (0% N)
· d → IV (18% N)
✅ Correct option: (a)