Help!Lakes that have been acidified by acid rain HNO3 and H2SO4 can be neutralized by a process called liming,?

However, the term acid rain was first used two centuries later when Angus ... are converted to nitric acid (HNO3) and sulfuric acid (H2SO4) through ... However, in the 1970s scientists discovered that acidified lakes also ... of sulfur dioxide and oxides of nitrogen have been correlated to increased .