To whom or what is the “I” in poem referring?

What kind of words would be to find the information from a database about changes in height of an ocean surface over a 20 year period

Read the sentence from alexander’s paper. when asked if she was loyal enough to become a secret agent, keysha answered in the affirmative. in which revised sentence did alexander change the underlined word to use it as an noun? since she was affirmably loyal, keysha was able to become a secret agent. before becoming a secret agent, keysha needed to affirm her loyalty. as an affirmation of her loyalty, keysha agreed to become a secret agent. once she finally affirmed her loyalty, keysha became a secret agent.

Use any method to combine the following sentences into one sentence. elvis presley died in 1977. his music is still popular today. graceland in memphis was his home.