Question

Identify the season during which the plants shed their leaves?

• A. Winter
• B. Spring
• C. Summer
• D. Autumn

Answer 1

Answer:

D. Autumn

Read Explanation:

• During autumn, several environmental changes trigger leaf shedding:

• Decreasing daylight hours

• Dropping temperatures

• Changes in rainfall patterns

• The process of leaf shedding is called abscission. As autumn progresses, trees form an abscission layer between the leaf stem and branch, which eventually cuts off nutrients to the leaf. The chlorophyll (green pigment) in the leaves breaks down, revealing other pigments like carotenoids (yellow and orange colors) and anthocyanins (red colors), creating the characteristic autumn colors before leaves fall.

• This leaf shedding is an adaptation that helps trees:

• Conserve water and energy during winter months

• Reduce damage from snow and winter storms

• Prepare for dormancy during harsh conditions

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