I have chemistry that is due in one hours any help

what is the. question I will help

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

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.