What kinds of questions is science UNABLE to answer? Provide an example.

Is there a parallel universe?

Do aliens really exist?

What happened before the Big Bang?

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.