The answer is: [B]: bioremediation .
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Check if the person is breathing or not is the answer
Going home school will make you even worse. it will make you depressed and alone. My suggestion is that just report the bullies to your guidance counselor at school. I know it's a hard thing to do but it very beneficial for you.
I believe that there’s two main reasons- an internal problem or an external problem.
Internal meaning that the person themself is shy and doesn’t have the courage to ask another
External meaning it’s the person they are asking, they could possibly be rude or something like that