Fall Colors and Climate Change

The video explores the beauty of fall in the northern hemisphere, focusing on the changing colors of leaves. It explains how chlorophyll, carotenoids, and anthocyanins contribute to the vibrant colors seen in autumn. The video discusses how seasonal changes and climate change impact these colors, with a study showing that fall colors appear later now than 20 years ago. The video concludes by encouraging viewers to enjoy the fall season and its natural beauty.

What season is described as the favorite due to its crisp days and beautiful colors?

• Winter

• Spring

• Summer

• Fall

What is the primary function of leaves on a tree?

• To store water

• To provide shade

• To produce energy using sunlight

• To attract insects

Which pigment is responsible for the red and blue colors in leaves?

• Chlorophyll

• Carotenoids

• Anthocyanins

• Xanthophylls

Why do leaves change color in autumn?

• To conserve water

• Because of the breakdown of chlorophyll

• Due to increased sunlight

• To attract more pollinators

What happens to the leaves as the season progresses?

• They turn green again

• They grow larger

• They become more vibrant

• They break down and fall off

How does climate change affect the color of leaves?

• Leaves grow larger

• Leaves become more yellow

• Leaves fall off earlier

• Leaves become more red

According to a study, how has the timing of fall colors changed over the past 20 years?

• They appear later

• They appear at the same time

• They appear earlier

• They have not changed

What is a potential economic impact of changing leaf colors due to climate change?

• Increased tourism

• More agricultural opportunities

• Decreased tourism

• Less agricultural opportunities

What is the narrator's suggestion for enjoying the fall season?

• Stay indoors

• Travel to a tropical location

• Go leaf peeping

• Ignore the changes

What is the main theme of the video?

• The dangers of summer heat

• The science behind leaf colors and climate change

• The beauty of winter

• The importance of spring