The change of leaf colors in the fall is caused by:
A) production of new pigments.
B) a need to conserve heat.
C) phototropism.
D) chlorophyll decay revealing other photosynthetic pigments already present in the leaf.
E) abscission.

Question

Quizplus · Accepted Answer

The change of leaf colors in the fall is primarily due to the breakdown of chlorophyll, which allows the other pigments already present in the leaves (such as carotenoids and anthocyanins) to become visible.

The Change of Leaf Colors in the Fall Is Caused