Iceland is built on a mature spreading center that has been opening for the last 100 million years.
Answer the following statement true (T) or false (F)
False
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Which approach is advocated by biologists to ensure the biological integrity of the core zone in a protected area?
A. Buffers that allow increasing degrees of use further from the core zone. B. Buffers that allow decreasing degrees of use further from the core zone. C. Buffer zones that allow unlimited use of resources. D. Buffers in the core zone itself that allow multiple uses.
Why are hot spots so strange?
A) They occur at plate boundaries, B) The volcanoes at hot spots erupt once a year. C) They only occur near transform boundaries. D) Molten material rises from deep in the mantle below the moving lithosphere as a result of processes not explained by plate tectonics,
A 21-year-old man was removed from the water after being submerged for approximately 5 minutes. The patient's friend, who was with him at the time of submersion, states that there was no trauma involved. Your assessment reveals that the patient is apneic; however, he has a slow, weak carotid pulse. After preoxygenating the patient, you insert an endotracheal tube. During auscultation of the lungs, you hear coarse crackles in all fields; the epigastrium is quiet. As you ventilate the patient, you note decreased compliance. The MOST effective way to treat this situation is to:
A) attach a portable ventilator that provides positive end-expiratory pressure. B) insert a nasogastric tube and remove any water from the patient's stomach. C) increase your ventilation rate to 15 breaths/min and provide higher volume. D) administer morphine sulfate to promote venous pooling and decreased preload.
When the Europeans divided Africa into different zones of influence, what was a primary flaw?
A) The borders bore no resemblance to the distribution of indigenous peoples. B) The French were excluded from the process, which led to several wars in Africa. C) The Europeans only addressed the northern half of Africa, which created land rushes in southern Africa. D) Several major port cities were shared among several European powers. E) Surveying equipment of the era was hopelessly outdated.