An example of an adaptation that reduces water loss in plants is

• A. Waxy epidermis
• B. Thin leaves
• C. Stomata
• D. Large veins

Answer: (A)

Water loss happens mainly through the leaf surface via the waxy cuticle and through stomata, which are openings that can let water vapor escape. A waxy epidermis provides a hydrophobic barrier on the leaf surface, forming a thick, water-repelling cuticle that dramatically reduces evaporation. This structural feature is a classic adaptation for conserving water, especially in dry environments, because it limits how much water can escape from the leaf while still allowing light absorption for photosynthesis.

The other options don’t serve this purpose as effectively. A thin leaf increases surface area and can lead to more water loss. Stomata are the gates for gas exchange and can contribute to water loss when open, so having them isn’t a direct adaptation to reduce water loss by itself. Large veins focus on transporting water and nutrients and supporting leaf structure rather than cutting down evaporation.