The Rhyme scheme is ABAB while for imagery, the use of descriptive phrases like "fearful color" help the reader visualise the frog.
Analogy is used to compare the frog to a cheerful tune.
Sound devices are a type of figurative language which use repeating and similar sounds to add emotional effects to a writing.
The sound devices used include: friendly frog, squeak, steep sun heats the streamline, and tearful teeth.
Imagery used include fearful color, peaches of June, and cheerful tune.
Figurative speech used include compare you to a cheerful tune (analogy) and invading my mind (personification).
In the third stanza, the use of parallelism helps the poem flow.
Therefore, sound devices, imagery, and figurative speech are used in writing to add emotional effects and meaning to writing.
Learn more about sound devices at: https://brainly.com/question/2279992
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