How did changes in the climate lead to the arrival of the first people in the Americas?

Hur ! asap what is the structure of the following sentence? although i have already visited africa, i would certainly like to return. a) compound b) compound-complex c) complex d) simple

Ihave no idea what the explanation is.

Which traits are strongest in your persuasive eassy: ideas, orginization, voice, word choice, sentence fluency, or conventions? (provide textual evidence from your persuasive essay to support your answer.)