Who invented the alphabets?

What does vexed mean as it is used in the second stanza of "the second coming"?

Where does writer's block come from? briefly describe each of the four possible reasons that writer's block occurs. asap!

Because genetics is now progressing so rapidly, it is revolutionizing medical research. identify the subordinate clause in the sentence. a) is now progressing b) is now progressing so rapidly c) it is revolutionizing medical research d)