UPSC NDA I 2015 General Ability Paper

Concept:A complete fertilizer supplies all essential plant nutrients, but the explanation given is incomplete as it omits other vital elements.Explanation:Statement I is true because complete fertilizers provide a balanced mix of nutrients, promoting smooth plant growth.Statement II is also true: a complete fertilizer must contain nitrogen ($\mathrm{N}$), phosphorus ($\mathrm{P}$), and potassium ($\mathrm{K}$).However, plants need more than just $\mathrm{N}$, $\mathrm{P}$, and $\mathrm{K}$ — essential elements like calcium, magnesium, and sulfur are also required.The presence of $\mathrm{N}$, $\mathrm{P}$, and $\mathrm{K}$ alone does not fully account for smooth growth; other nutrients play a crucial role.Thus, Statement II is a true fact, but it does not correctly explain why growth is smooth with a complete fertilizer.Therefore, both statements are individually true, but Statement II is not the correct explanation of Statement I.Answer:B. Both the statements are individually true but Statement II is not the correct explanation of Statement I.