For what purpose does the author of "Why Leaves Turn Color in the Fall" by Diane Ackerman oganize the essay according to cause and effect?
A. She wants to describe how cold wather affects nature.
B. She wants to explain the process by which the color green disappears from leaves.
C. She wants to explain the scientific process called photosythesis.
D. She wants to describe how the fall colors affect her.
Is the answer B?
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