The internal factor affecting transpiration is

Options

(a) oxygen
(b) nitrogen
(c) carbon dioxide
(d) sunken stomata

Correct Answer:

sunken stomata

Explanation:

Transpiration is the process of loss of water in the form of vapour from the aerial parts of plants. Many factors regulate the rate of transpiration which may be external or internal. External factors include light, relative humidity, temperature, wind, atmospheric pressure, water. Internal factors include leaf area, leaf structure i.e., distribution and nature of stomata. Plants of xerophytic habitats develop some characters in leaves so as to reduce rate of transpiration like thick cuticle, sunken sto