How is surface water naturally purified?
A:freezing water destroys impurities
B:evapora...
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Dna replication or repair occurs in a cell in all of thw following situations except when
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Brainlest awardhow does smoking and arterial plaques increase the risk of hypertension? (2 points) select one: a. both increase blood volume. b. both decrease blood volume. c. both expand the diameter of the blood vessels. d. both constrict the diameter of the blood vessels.
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