Minute openings present on under surface of leaves are known as ________.

Stomata:

1. Stomata are the tiny openings in the leaves.
2. Gases can only diffuse in and out of a leaf through the stomata.
3. They have the ability to open and close in response to the plant's needs.
4. The stomata allow the plant to take in carbon dioxide while also releasing oxygen into the atmosphere.

Final Answer: Minute openings present under the surface of leaves are known as stomata.