What is required to convert sediment into sedimentary rock?
A. Burial beneath the Earth's surface
B. Weathering
C. Volcanism
D. Metamorphism
Answer: A
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In which of the following locations do the lowest average temperatures in the world occur?
A. Arctic B. northwestern Europe C. Antarctic D. North America
All of the following statements about the significance of the United Nations are correct EXCEPT
A. the U.N. enforces its policies by fining countries who violate them. B. the U.N. regularly developed policies related to worldwide environmental concerns. C. the U.N. successfully brought countries together to establish policies that resulted in elimination of the use of chlorofluorocarbons that destroy ozone in the upper atmosphere. D. the U.N. cannot dictate to a country what it should do to protect the environment.
Autotrophs that dwell in dark caves, in wells, or on the ocean floor often depend on which of the following biogeochemical processes?
A) chemosynthesis B) photosynthesis C) nutrient leaching D) nitrogen fixing
A 45-year-old man presents with severe cramps in his legs, nausea, and lightheadedness after running laps at the track. The temperature outside is 95°F and the relative humidity is 80%. The patient is conscious and alert and is sweating profusely. His blood pressure is 100/60 mm Hg, pulse is 120 beats/min and weak, and respirations are 24 breaths/min and regular. The MOST appropriate treatment for this patient involves:
A) giving him a salt-containing solution to drink, applying chemical ice packs to the back of his neck, and discouraging further activity for the day. B) administering high-flow oxygen, gently massaging his lower extremities to enhance circulation, administering 1 µg/kg of fentanyl IM, and transporting. C) offering him oxygen, starting an IV with normal saline, giving a 250- to 500-mL fluid bolus, and recommending transport to the hospital for evaluation. D) having him chew salt tablets, starting an IV with D5W at a keep-vein-open rate, administering 12.5 mg of promethazine IV, and transporting to the hospital.