Please help !!

What language technique is describing someone as a human chimney ??

And that's poem by ruskin bond what does the use of the word heartbeat suggest about the narrator's attitude towards life

Plzzz me needs a hyphen or no hyphen 1. laura, a friendly little girl, says hello to everyone she passes 2. my uncle is well known jazz musician 3. our school's winning football record is welll known 4. the angry looking woman was having a heated discussion with the store manager.

What is most likely nelson mandela's purpose of using third person point of view after introducing himself in his introductory paragraphs