Sulfur dioxide gets reacts with water vapor to produce aqueous hydrogen sulfite.

SO₂ +  H₂O → HSO₃⁻ + H⁺

Explanation:

Assuming, you want to know the final balanced equation of this reaction, which is in words.

Sulfur dioxide reacts with water vapor to produce aqueous hydrogen sulfite and H⁺ ions(acidic).

Sulfur dioxide: SO₂(g)

Water vapor: H₂O(g)

Hydrogen sulfite: HSO₃⁻(aq)

Before putting them in the equation, check for each element's oxidation state to identify the nature of the reaction.

OS of S in SO₂ is +4, and in HSO₃⁻ is also +4.

OS of H and O remain +1 and -2, respectively.

SO₂ +  H₂O → HSO₃⁻ + H⁺

This further reacts to form sulfur trioxide (SO₃) gas, which is main cause for acid rain, as this reacts with water vapor in atmosphere to form sulfuric acid.

beta decay is the answer

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.