Most damage to perennial plants Most damage to plants that hold leaves for long periods.
Sulfur compounds acidify the soil.
Leach more materials from rock Makes it harder for some plants to extract minerals from the soil. Acidify lakes with no calcium underbed - mostly mountain and glacier scraped soils. Nitrogen compunds may act as plant fertilizers and stress plants that can't get enough minerals to increase their growth rate. Nitrogen compounds eat away at stones. Crops are damaged by acid rains dependent upon species, temperature, humidity, soil, etc.