Read the following excerpt from "Woman Who Helped Hide Anne Frank Dies at 100" by Teri Schultz. What is the purpose of this excerpt?

What is the rhyme scheme in this excerpt from longfellow's, "the tide rises, the tide falls? " (10 points) the tide rises, the tide falls, the twilight darkens, the curlew calls; along the sea-sands damp and brown the traveler hastens toward the town, and the tide rises, the tide falls.