Question

Cobalt chloride paper remains blue on upper surface of the leaf but turns pink on the lower surface of the leaf. This proves that:​

• A. More stomata present on the lower side of the leaf​
• B. Less stomata present on the lower side of the leaf​
• C. No stomata present on the upper side of the leaf​

Answer 1

The correct option is A More stomata present on the lower side of the leaf​

The correct answer is Option A.