As the cause of an acidic rain is the amount f pollutants in the air spread from the industrial effluents mostly in the form of sulphur and the nitrogen compounds as this rain has a ph value of 14.
it has a drastic impact on the land and as well as the water resources of the planet as the acid is harmful and destroys the content of O2 in air and water thus causing large scale deaths of the marine organisms.
The Great Rift Valley is currently in the process of splitting the African plate into two different plates, and it's a divergent boundary, moving the Somalian, Arabian and Nubian plate away.