the effects of acid deposition usually appear over what time period

The effects of acid deposition typically appear over a long period of time, ranging from years to decades. This slow process is due to the cumulative impact of acidic compounds building up in the environment over time. It is important to note that the severity and rate of damage caused by acid deposition depend on various factors such as the amount and frequency of acidic deposition, buffering capacity of the affected ecosystem, and regional weather patterns.