_________ helps the plant in exchange of gas with the atmosphere.EpidermisSclereidsStomataPhloem

The correct answer is Stomata.

Explanation:

Stomata are tiny openings found on the surface of leaves and stems of plants that facilitate the exchange of gases between the plant and the atmosphere. Through these openings, plants take in carbon dioxide (CO₂) necessary for photosynthesis and release oxygen (O₂) as a byproduct. Stomata also play a crucial role in regulating transpiration, which is the process of water vapor loss from the plant. The surrounding cells, known as guard cells, control the opening and closing of stomata in response to environmental conditions, helping maintain homeostasis within the plant. Other options like epidermis, sclereids, and phloem do not specifically function in gas exchange.