Answer:
Acid rain is mildly to moderately acidic
Step-by-step explanation:
Acid rain is characterized by having a pH level lower than the neutral pH of 7.0. Typically, acid rain has a pH ranging from 4.0 to 5.5, although it can be even lower in some cases. This means that acid rain is mildly to moderately acidic. The acidity of acid rain is primarily caused by the presence of sulfur dioxide (SO2) and nitrogen oxides (NOx) in the atmosphere, which react with water, oxygen, and other compounds to form sulfuric acid (H2SO4) and nitric acid (HNO3). These acids can have harmful effects on the environment, including damaging vegetation, aquatic ecosystems, and infrastructure.