What describes precipitation containing a high concentration of harmful acids?

Acid rain is characterized by precipitation that contains elevated levels of sulfuric and nitric acids, often as a result of pollutants released into the atmosphere from industrial processes, vehicle emissions, and other sources of air pollution. When these substances combine with water vapor in the atmosphere, they can form acid clouds, which eventually fall to the ground as rain (or other forms of precipitation) with a lower pH than normal rainwater.

This phenomenon can have detrimental effects on the environment, such as harming aquatic ecosystems, damaging soil quality, and degrading vegetation. It is specifically linked to the presence of contaminants in the atmosphere that lead to the formation of these harmful acids, making the term "acid rain" the most accurate descriptor for this type of precipitation. The other options do not refer specifically to this process or its consequences, as pollution is a broader term that encompasses many forms of environmental contamination, climate change refers to long-term alterations in temperature and weather patterns, and deforestation concerns the reduction of forested areas rather than precipitation directly.