Can somebody help me out with this question?

3 element

Explanation:

H2SO4  has 2 hydrogen atom, 1 sulfur atom, 4 oxygen atoms that are chemically bonded.

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.