Which sentence is punctuated correctly? Every summer—there is an equinox—to mark the lengthening days.

The new technology included four modes—and multiple functions.

Creating—which is a stunning work of art, is a trial of mind and spirit.

Saturday—the best day of the week—is when I do not have to work.

the red coloration of the lungs looks alarming and adds to the overall message that the flu is threatening apex

when alex falls for the charming new boy at school, cole -- a handsome, funny, sports star who adores her - she can't believe she's finally found her soul who truly loves and understands her.  

at first, alex is blissfully happy. sure, cole seems a little jealous of her relationship with her close friend zack, but what guy would want his girlfriend spending all her time with another boy? as the months pass, though, alex can no longer ignore cole's small put-downs, pinches, or increasingly violent threats.  

as alex struggles to come to terms with the sweet boyfriend she fell in love with and the boyfriend whose "love" she no longer recognizes, she is forced to choose -- between her "true love" and herself.

explanation:

because he is using a description to provide evidence to support his argument.

hope this could