Question

Some desert plants have very small leaves whereas some others have
only spines. How does this benefit the plants?​

Answer 1

Leaves of the desert plants are very small or reduced to spines to reduce water loss through transpiration and roots of these plants grow deep into the soil for absorbing water. Hence, desert plants are adapted to live in hot and dry conditions of the desert.

Answer 2

Explanation:

because leaves need water to grow so

plants in desert have small leaves or spine to prevent water from wasting.