How the author uses one literary or literary element to develop a central idea in the wonderful wizard of oz

In chapter 12 of The Wonderful Wizard of Oz, the central idea is that good is stronger than evil. The primary literary technique used to develop this idea is to cast the Wicked Witch of the West as the archetype of evil while Dorothy is cast as the archetypal innocent, representing the superior power of good.

Explanation:

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the message which is being conveyed is that if a person does not have the qualified skills to be an writer then he should not and if he becomes then just leave it away..

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the dictionary definition of ubiquitous is "present, appearing, or found everywhere".