Which of the following is NOT an example of a chemical reaction A. propane burning
B. A car battery discharging
C. Neutralizing an acid with base
D. water evaporating

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.

14 days is the half-life of phosphorus-32