The one that helps identify leaves as monocot or dicot are the characteristic of their veins. In a monocot, leaves have parallel veins or parallel venation; whereas, dicot leaves have a network of veins or reticulate venation. Hope this is the answer that you are looking for. Have a great day!
<h2>Answer </h2>
Photosynthesis
<u>Explanation </u>
If the carbon dioxide is present in the stomata that means the process of photosynthesis takes place because in this process the carbon dioxide is absorbed by the leaves through the small pores called as stomata present on leaves. For the plant's grow the carbon dioxide and water absorption is essential and during the process of photosynthesis, oxygen is released which essential for the human body. For the photosynthesis the energy is required which is taken from the sunlight.
Al of these will be the consequences except C, increase in polar ice. The rise in temperature is already causing the polar ice to melt down. The further increase in temperature will make the situation of the polar ice worse. the rise in vegetation in Tundra and Tyga regions could be seen because they are very cold areas and temperature increase may help vegetations to survive.
