A. Magnesium
A.
B. Calcium
B.
C. Chlorine
C.
D. Sodium
D.
Correct Answer: A
সঠিক উত্তর: A
Explanation
ব্যাখ্যা
Chlorosis, the yellowing of plant leaves, is primarily caused by deficiencies in essential mineral nutrients like nitrogen, magnesium, iron, and manganese. These deficiencies disrupt chlorophyll production, leading to the loss of green pigment. While these nutrient deficiencies can affect plant health, they do not directly cause chlorosis in humans. Human chlorosis is primarily associated with iron deficiency anemia, a different condition.