The drinking water is contaminated with im

The drinking water is contaminated with impurities.

A:blackened B:polluted C:darkened D:mixed

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The temperature at which the air is saturated with water vapor and below which condensatio

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The drinking water is contaminated with impurities.A.blackenedB.pollutedC.darkenedD.mixed

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The drinking water has become contaminated

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The drinking water has become contaminated

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The drinking water has become contaminated

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The drinking water has become contaminated

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The big lake was【 contaminated 】with waste waters

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