Leaf has a flat surface inorder to absorb maximun sunlight
good
petiole
to develop axillary bud
Yes a leaf can not have a waxy surface if it is so adapted. The waxy surface is designed to keep water off, and inside of the leaf. Leaves in the rain forest often have a waxy surface to keep from being constantly saturated in water.
To minimize the rate of transpiration from leaf surface
A pagina is the surface of a leaf or of a flattened thallus.
leaf blade or lamina
because the leaf is non polar or Because the leaf is coated in lipid molecules
good
petiole
A cylinder has an outer surface and an inner surface. If cut from top to base and flattened out, it still has two surfaces.
why is the food-making tissue at the leaf surface why
to develop axillary bud
The surface of the leaf that you see is the "epidermis".
It would depend on how enthusiastically you flattened it. Like a jeweller hammering out gold leaf, you could probably make it about a quarter the size of a tennis court if you had sufficient patience and skill.
the underside of the leaf loses water much faster
This is because they need to fit in anything!