Why Do Leaves Change Colors in the Fall?

The video explains the changes in leaves during autumn, focusing on the role of chlorophyll and other pigments. As days shorten, chlorophyll production decreases, revealing other pigments. Leaves fall as trees store energy for winter, restarting the cycle in spring.

What is a characteristic feature of autumn mentioned in the video?

• Longer days

• Warmer weather

• Brightly colored leaves

• More rainfall

Which type of trees remain green throughout autumn and winter?

• Birch trees

• Maple trees

• Oak trees

• Pine trees

What is the primary role of chlorophyll in leaves?

• To give leaves a red color

• To protect leaves from insects

• To store water in leaves

• To capture sunlight for energy

Why do leaves appear green during spring and summer?

• Because they reflect blue light

• Due to the absence of sunlight

• Due to the abundance of chlorophyll

• Because of the presence of red pigments

What happens to leaves when they lose chlorophyll?

• They become more green

• They start to grow faster

• They become resistant to cold

• They reveal other pigments and eventually fall