Which of the following leaf modifications occurs/occur in desert areas to inhibit water loss? 1. Hard and waxy leaves 2. Tiny leaves or no leaves 3. Thorns instead of leaves Select the correct answer using the codes given below.

1. Plants in desert areas face extreme water scarcity and have evolved various adaptations, including leaf modifications, to inhibit water loss (transpiration). 2. Statement 1 is a common adaptation. Hard and waxy leaves reduce water loss. The waxy cuticle on the leaf surface acts as a barrier, preventing evaporation from the leaf cells. 3. Statement 2 is another key adaptation. Reducing the total leaf surface area minimizes the area from which water can be lost through transpiration. This is achieved by having very tiny leaves (microphylls) or by shedding leaves entirely during dry periods, or having no leaves with photosynthesis occurring in the stem (e.g., cacti). 4. Statement 3 describes a modification where leaves are modified into thorns or spines. This drastically reduces the surface area for transpiration and also deters herbivores. Photosynthesis is often carried out by the stem in such plants (e.g., cacti). 5. All three described modifications – hard and waxy leaves, tiny leaves or no leaves, and thorns instead of leaves – are strategies employed by desert plants to conserve water by inhibiting water loss.