We think the student deserves a good grade, as he did find where the ex waas number three Amazing excuse sometimes and for some people many times you don't know the answer to the question just because you haven't studied for whatever reason, in this chemistry exam, this student was asked how a nitrogen atom becomes useful in the upper atmosphere to find the age of a bone instead of answering, the kid makes an excuse, saying that they hadn't studied for the test and don't know the answer.