Why do writers break their writing into paragraphs?

Read the excerpt and answer the question. the boards themselves seemed to remain upright not from being nailed together but rather from leaning together, like a house that a child might have constructed from cards. what best describes the figurative language in the sentence above? idiom simile onomatopoeia personification

What is a hyperbole in the book messenger

How does the author introduces his idea of fish depletion in the first few pages of world without fish?