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Angielski techniczny
chemical compound, primary pollutants, desertification, biological filtration, labolatory shaker, harmless, energy losses, fluent, remote, dilute, diverse, fossil fuels, persistent smog, exiccator/desiccator, desert, widespread, soot, worldwide problem, runoff, to trace, cumulative, primary sources, rough, to suffocate, sieve shaker, suspended sediment, hydro dam, graduated pipette measuring, enlarge, natural resources, distant, unsightly