Which element of greek tragedy refers to the tragic flaw within the protagonist that helps bring about his or her downfall ?

hamartia

Explanation:

ha·mar·ti·a

/ˌhämärˈtēə/  

noun

a fatal flaw leading to the downfall of a tragic hero or heroine.

"there's supposed to be an action that reveals the protagonist's hamartia"

it is about the use of non animal tested cosmetics.

the pronoun reference replaces a noun, but you have to make sure there's no room for confusion.

in the first sentence "her" could be referring to shely or to the sister. the answer there is "shelly called her sister and told her about the new baby."

in the second sentence "it" could be referring to the roof or the floor. the answer there is "since the roof leaks on the family room floor, we need to repair the roof."