27. The three elements most needed in common fertilisers are : A.Sulphur, Phosphorous and Sodium B.Nitrogen, Potassium and Phosphorous C.Phosphorous, Sodium and Nitrogen D.Calcium, Phosphorous and Potassium
Answer: Option B Solution: Fertilizer (or fertiliser) is any organic or inorganic material of natural or synthetic origin (other than liming materials) that is added to a soil to supply one or more plant nutrients essential to the growth of plants. The three elements most needed in common fertilisers are Nitrogen. Potassium and Phosphorous.
