DENDROLOGY

Detailed explanation-1: -During daytime in the sunlight, the rate of transpiration is faster. This is because the stomata remains open to allow the inward diffusion of carbon dioxide for photosynthesis. During dark, the stomata are closed, and hence transpiration hardly occurs at night.

Detailed explanation-2: -Several factors can affect the rate of transpiration, including temperature, humidity, air movement, and light intensity. Warmer temperatures generally lead to higher transpiration rates, while higher humidity levels decrease the rate of water loss.

Detailed explanation-3: -As the relative humidity of the air surrounding the plant rises the transpiration rate decreases. It is easier for water to evaporate into dryer air than into more saturated air.

Detailed explanation-4: -Final answer: Age of plant does not affect the rate of transpiration.