Which of the following statements are true? (i) Small pores in epidermis of leaf is called stomata. (ii) Guard cells present in the stomata are helpful in exchange of gases with atmosphere. (iii) Transpiration takes place through stomata.

- Statement (i) is true. Stomata (singular: stoma) are indeed small pores, usually found on the surface of leaves (epidermis), though they can also be present on stems. - Statement (ii) is true. Each stoma is surrounded by a pair of specialized cells called guard cells, which control the opening and closing of the stomatal pore, regulating the exchange of gases (carbon dioxide, oxygen, and water vapor) between the plant and the atmosphere. - Statement (iii) is true. Transpiration, the process by which