Here's why:
* Stomata: Leaves have tiny pores called stomata on their surface. These stomata open and close to regulate gas exchange, including the release of water vapor during transpiration.
* Surface Area: Leaves have a large surface area, which maximizes the amount of water vapor that can be released.
* Vascular Tissue: Leaves contain vascular tissue (xylem and phloem) that transport water from the roots to the leaves, supplying the water needed for transpiration.
While other parts of the plant, like stems, might have some stomata, the leaves are the primary site of transpiration due to their specialized structure and function.
