Is a comma requires before the word "and" when listing?

What is the challenges that percy Jackson face in chapter 1 and 2

What threats surround hrothgar after hrothulf's arrival? how is hrothulf like a scorpion?

What does the severity of previous traumatic events mean

Which of the following best expresses the basic theme of Our Town?

What conclusion can a reader draw about Rainsford based on a visualization of the excerpt? He is relieved. He is lost. He is frightened. He is confused.

What is the effect of comparing trust to "a trust of the sun"?

Grover's corner has six churches and a combination town hall-post office-jail

What does the speaker's use of oxymorons suggest about love?

What does the word promotion mean within the context of the article Jim Crow laws

the clanking machine gave everyone in the factory a headache. Which best identfies the word that is modified by the underlined particple ... (the underlined word is "clanking")