Answer. Acid rain on soil and rocks leaches heavy metals (Al, Hg, Pb, Cr, etc) with it and discharges these metals into rivers and lakes. Aquatic life present in lakes, suffers because of high concentration of these metals. Especially high concentration of aluminum metal clogs the fish gills. It causes suffocation and ultimately death of fish. In this way aquatic life is affected by acid rain as shown in figure.