Acid rain is precipitation that has a pH level lower than 5.6. Burning fossil fuels and other pollutions release sulfur and nitrogen oxides into the atmosphere causing acid rain because it contains dangerous amounts of nitric and sulfuric acids. Because acid rain is polluted it becomes harmful to the environment. Acid rain seeps into the soil and gradually gets into water tables, creating a more acidic soil and nutrients. Because these nutrients are more acidic, plants loose nutrients in the stems and leaves of the plants. Also a reduction in tree growth, caused by the insufficient amount of minerals needed from the soil.