Answer:
I think it is saying this...
A blown quiz could do a lot of damage to your grades and classes. It could cause your grades to all go downhill. It could cause your other grades to be bad too and like it says, cause a domino affect with all of your grades spiraling.
Explanation:
I hope this helps lol
Answer:
The second one is the only one that does.
This probably means that something you had planned to turn out well, ended up going against you. The scenario flipped it's self around and you were so said "betrayed" by your own plan or game.