In areas of downwelling, a near-surface ________ is unlikely.
A. thermocline.
B. halocline.
C. pycnocline.
D. All of these are correct.
E. None of these is correct.
Answer: D
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A hiker was bitten on the left lower leg by a rattlesnake. He is conscious and alert, but complains of nausea and generalized weakness. The affected area, which has two distinct puncture wounds, is swollen markedly. The patient's blood pressure is 114/66 mm Hg, pulse rate is 120 beats/min and regular, and respirations are 22 breaths/min and regular. The MOST appropriate treatment for this patient involves:
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