Which of these is a micronutrient?
ABoron
BBarium
CBromine
DBismuth
Answer & Solution
Correct answer: A. Boron
1. Micronutrients are needed in very small amounts.
2. The list includes iron, zinc and chlorine.
3. Boron is a micronutrient.
_Source: NCERT Class 11 Biology, Ch 12 'Mineral Nutrition'_
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