Nickel has 28 protons if it has 31 neutrons, what is it’s atomic mass? a) 3 b)28 c)31 d)59

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.