Which statement describes the Potomac-Shenandoah watershed? A. It flows into the James River.
B. It includes part of West Virginia.
C. It is the northernmost watershed.
D. It is a mixture of fresh and salt water.

A It flows into the James River, the others are random or not true

Explanation:

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation: