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Trắc nghiệm: Due to an increase in population and the use of nearby land for farming. there are toxic levels of chemicals in the water.,Due to an increase in population and the use of nearby land for farming. there are toxic levels of chemicals in the water.

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Due to an increase in population and the use of nearby land for farming. there are toxic levels of chemicals in the water., Due to an increase in population and the use of nearby land for farming. there are toxic levels of chemicals in the water.

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