What is an example of a leaf adaptation to prevent water loss?

The presence of certain features that enable a plant or an animal to live in its surroundings is called adaptation. For example, Desert plants lose very little water through transpiration. The leaves in desert plants are either absent, very small, or they are in the form of spines. This helps in reducing the loss of water from the leaves through transpiration. The leaf-like structure in a cactus is, in fact, its stem. Photosynthesis in these plants is usually carried out by the stems. The stem is also covered with a thick waxy layer, which helps to retain water in the tissues of cacti. Most desert plants have roots that go very deep into the soil for absorbing water.

Further Reading:

• Geography Notes
• Environment and Ecology Notes