The diagram illustrates the process of pollutants that from modern life become acidic rain which in turn pollutes the food chain and the environment.
In overall, it is a cyclic process. However, there are 10 steps while it starts with formation of gases through different human activities and ends with acidic water enters to food chain.
Getting back to the details, first of all different harmful gases like (carbon dioxide, sulphur dioxide, nitrogen oxides, mercury and others components) are produced by housing activity, transportation, factories and power station which rise to clouds and clouds absorb that pollution. After that, the polluted cloud cross nations to nations and landenden with pollution. Likewise,the landen clouds with pollution starts acid rainfall on hills and lands.
In addition,the acidic water falls on flora and fauna also. Moreover,the water mixed with river and lakes. Lastly the pollutates water absorbed by land and it effect to foodchain and the process completed here.