What is true of stomata? they take in oxygen and release carbon dioxide. they take in water and release carbon dioxide. they take in carbon dioxide and release oxygen. they take in water and release oxygen

They take in carbon dioxide and release carbon oxygen.

Explanation:

Stomata are small pores present over the surface of  the leaves and on some stems. They are responsible for the exchange of gases from the internal environment of the leaves to the external environment. They allow the entry of carbon dioxide from the atmosphere and release out oxygen during the process of photosynthesis.