Question 34
Photosynthesis and Plant NutritionA very poor growth in plants and discolouration of leaves signifies the deficiency of
- A.calcium
- B.magnesium
- C.potassium
- D.manganese
Show the answer and explanation
Answer: B (magnesium)
Explanation
Magnesium is part of chlorophyll; without it leaves turn yellow (chlorosis) and growth is poor.