Question

In most broad leaved plants the stomata occur only in the lower surface of leaf why

Answer 1

Hey friend here is your answer

In most broad leaved plants the stomata occur only in the lower surface of leaf for reducing transpiration rate .

hope it help you ^_^

Answer 2

because it is the only part which can collect maximum sunlight from the sun and food is made and after they store it at the lower surface so that it can easily be assessed on required time to any part off plant