1. Thick Cuticle: The outer layer of a leaf, called the cuticle, is a waxy coating. This waxy layer acts as a barrier, slowing down the rate at which water vapor escapes from the leaf's surface. Think of it like a waterproof sealant.

2. Stomata Control: Stomata are tiny pores on the underside of leaves that allow for gas exchange (taking in CO2, releasing oxygen). They also play a crucial role in water regulation. Plants can partially close their stomata to reduce water loss through transpiration (the process of water evaporating from leaves). This closing mechanism is often triggered by conditions like drought, high temperatures, or low humidity.

Let me know if you'd like more details about these adaptations!