No water is not a living thing
Hey there!
The purpose of guard cells is to control the opening and closing of the Stomata, keeping it the correct width, or size.
Therefore, your correct answer would be Option 3, control the size of the Stomata.
Hope this helps!
2.)for they can grow green leaves through Photosynthesis in which plants convert energy from the sun.
<span>liverworts is your answer hope i helped</span>
