[C] condition of water
Epidermis is present as the outermost layer of the plant body such as leaves, flowers, stems and roots. It is covered with a cuticle (a waterproof layer of the waxy substance cutin).
The main function of the epidermis is to protect the plant from dryness and infection. The cuticle of the epidermis helps to reduce water loss by evaporation from the plant surface and also helps to prevent the entry of pathogens (bacteria, fungi etc.). Many plants have truncated hairs (trichomes) on the aerial surface to reduce transpiration.