Question

name the process of making a leaf lose its colour

Answer 1

If the leaf will be boiled in methylated spirit or alcohol, it loses its colour.
Because, alcohol extracts out the chlorophyll from the leaves.
This step is done to know the amount of starch.

Answer 2

Answer:

Chlorophyll Breaks Down

But in the fall, because of changes in the length of daylight and changes in temperature, the leaves stop their food-making process. The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible and give the leaves part of their fall splendor.

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