Answer
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Step 1:The process of leaves changing color is called "autumn foliage" or more scientifically, "leaf senescence".
Here's a detailed explanation:
Step 2:: Understanding Leaf Color Change
During autumn, deciduous trees stop producing chlorophyll, which gives leaves their green color. As chlorophyll production decreases, other pigments become visible.
Step 3:: Color Transformation Process
- Green chlorophyll breaks down - Yellow (xanthophylls) and orange (carotenoids) pigments become visible - Red pigments (anthocyanins) are produced in some trees
Step 4:: Scientific Factors Influencing Color Change
- Decreased daylight hours - Lower temperatures - Reduced chlorophyll production - Tree species - Environmental conditions
Step 5:: Biological Purpose
Trees shed leaves to conserve energy during winter and protect themselves from cold temperatures and reduced sunlight.
Final Answer
The color change of leaves in autumn is called "leaf senescence" or "autumn foliage", a natural biological process where trees prepare for winter by breaking down chlorophyll and revealing other pigment colors.
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