Acid Rain

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…humans when they are being consumed. For example, mercury that accumulated in the organs and tissues of animals has been linked with brain damage as well as nerve disorders and death. Similarly, another metal, aluminum, present in the organs of animals, has been associated with kidney problems and recently was suspected to be related to Alzheimer's disease. Obviously, acid rain is an ever-growing problem, which we, as human beings, must address and strive to fix.