Practice question
Question
Nitrogen deficiency symptoms appear first in:
Explanation
The right choice is C: Older leaves. In MINERAL Transport, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Young leaves; B) Roots; D) Flowers. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.