Answer: open more frequently to allow water and CO2 into the leaf tissue.
Explanation: Oxygen and C02 enters into the leaves to gives energy and sugar as food,to enable the plant to grow.
It allows the process of photosynthesis. Photosynthesis is the process whereby green plant and other orgasm manufacture light into chemical energy. Plants through the opening of the leaves breath in carbon dioxide and breath out oxygen. While animal in the other hand breath in oxygen and breaths out carbon dioxide.
The continuous opening and closing of stomata is responsible for photosynthesis.