Answer: Requires more context
Explanation: It is not possible to answer this question without additional context regarding the region being referred to. Acid rain can be a major issue in many regions around the world where there is significant air pollution, particularly from sources such as coal-fired power plants and industrial emissions. In general, areas with high levels of industrialization or heavy traffic tend to be more affected by acid rain. Some parts of North America and Europe have experienced significant problems with acid rain in the past, but it is important to note that acid rain can be a global problem affecting many different regions and ecosystems.