Question

In the cactus plant, the leaves have evolved into narrow spines to prevent .

• A. water loss
• B. water retention
• C. water storage

Answer 1

The correct option is A water loss

Cacti are terrestrial plants that grow in hot climatic conditions. They neeed to be able to store and retain water absorbed by the roots.

To enable this, the leaves become thin and sharp with a thick, waxy coating. They are called spines. This prevents water from being evaporated from the leaf surface.