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deep, narrow holes drilled into the earth to reach the ground water in aquifers.
the seepage of acidic, contaminated water from disused mines and mine dumps.
a thick layer inside the primary cell wall. It consists mainly of cellulose, hemicellulose and...
(also called caustic soda) a white solid, available in pellets, flakes or granules, with the...
the use of modern technology to manipulate living organisms to obtain products from them that...
(also called transgenic organism) an organism whose genetic material has been changed using...