Question

mobile nutrient deficiency symptoms will be found in _______ leaves.

○ smaller

○ older

○ bigger

○ newer

Explanation:

Mobile nutrients (like N, P, K) can be translocated from older leaves to newer tissues when deficient. So deficiency symptoms appear in older leaves as the plant reallocates these nutrients to growing regions. Smaller, bigger, or newer leaves don't fit as mobile nutrient deficiency affects older leaves first due to nutrient remobilization.

Answer:

B. Older