AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
The tiny pores on the surface of leaves through which gaseous exchange takes place are called stomata.
This is a direct one-word fill-in-the-blank. The textbook (Chapter 5) states that plants exchange gases through stomata. Examiners expect the exact term "stomata" (singular: stoma). No further explanation is needed for 1 mark.