What is the function of stomata

A. They add structure and rigidity to the leaf
B. They produce food through photosynthesis
C. They control the exchange of gases
D. They transport food to the roots

C. They control the exchange of gases

Stomata are tiny pores on the surface of leaves that control the exchange of gases, such as oxygen and carbon dioxide, between the plant and the atmosphere. This allows the plant to take in carbon dioxide needed for photosynthesis and release oxygen as a byproduct.