Why do calculations of absolute age of rocks based on rates of erosion and deposition can be inaccurate?

Calculations of absolute age based on erosion and deposition rates can be inaccurate because these rates can vary significantly over time and across different environments. Additionally, factors such as tectonic activity, climate change, and human interference can also impact erosion and deposition rates, leading to inconsistencies in age estimations. Using multiple dating techniques and considering various factors can help improve the accuracy of age calculations for rocks.