A relative pronoun usually introduces an adjective clause that usually starts with prepositions like who, which, that, whose, and whom. An example of this is: T<span>he singer </span><span>who sang had a broken voice. </span><span> Relative pronouns are one of the most commonly used sentence structures in the English language.
I think it's Earth because it's wider than life and it lives longer than forever. It seems so simple that it's complicated. It travels around the sun but never leaves it's spot. I don't know about the other two stanza's but my guess would be Earth.
