Question

In autumn leaf fall occurs, because

• A. Formation of abscission layer at the base.
• B. Leaf becomes heavy.
• C. Leaf does not remain green.
• D. Of low temperature.

Answer 1

The correct option is A Formation of abscission layer at the base.

Deciduous plants shed leaves in autumn. The shedding of leaves is a controlled and orderly process preceded by the formation of abscission layer at the base of leaf or fruit.

Thus, the correct answer is option A.