Choose the correct alternative:

Statement I: Buildings and bridges with metallic parts get damaged when exposed to acid rain.
Statement II: Acids react with some metals and damage the metal surface due to their corrosive nature.

 Both statements are true.
 

Atmospheric pollutants like the oxides of nitrogen and sulphur react with rainwater and come down to the earth as acid rain. Acids are corrosive in nature. They react with some metals, damaging and corroding them. Hence, buildings and bridges made of metallic parts get damaged due to acid rain.