Question

One of the internal factors that affect rate of transpiration is:

विकल्प

• Age of leaf

• Colour of leaf

• Sunken stomata

• Light

Answer 1

Sunken stomata

Explanation:

Sunken stomata is an internal structural adaptation of the leaf (common in desert plants) that helps reduce water loss by trapping a pocket of humid air outside the stomata, thereby lowering the rate of transpiration. Light is an external factor.