Identifying and evaluating the main idea helps understand what you need
You wouldn't want to swim in the Amazon when PIRANHAS are around. <span />
<span>The time required to grade homework is yet another task that diverts a teacher’s attention from actually teaching.
This claim can potentially weaken the claim, due to it becoming an unreliable source and just a filler. It could possibly bring down the whole claim in the first place. </span>
Chekhov uses language to show the change in the lawyer's outlook on life by making the lawyer's diction gloomier.
I think 1 is correct because there isn't more than 1 box.