Q: Fertilizers are used to obtain higher yields of crops. However, all nutrients are usually not available in fertilizers. Which one of the following nutrients is usually not available in fertilizers?
(a)Iron
(b)Potassium
(c)Nitrogen
(d)Phosphorus
Correct Answer: (a)
The correct answer is (d) 'फॉस्फोरस'. This question from the General Studies domain tests knowledge of Miscellaneous.