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the seepage of acidic, contaminated water from disused mines and mine dumps.
potentially lethal disease in humans and grazing animals such as cows and sheep. The disease is...
organisms, such as plants, which are able to produce their own organic foodstuffs from inorganic...
tough cartilage that acts as a shock absorber between vertebrae and at the ends of bones in ball...
pollutant gases such as nitrogen monoxide and nitrogen dioxide. They are produced during ...
an infectious disease caused by the bacterium Mycobacterium tuberculosis thatusually...