Coal contains only minute quantities of radioactive materials, yet there is more environmental radiation surrounding a coal-fired power plant than a fission power plant. This indicates that
A. the coal-fired power plant has been contaminated.
B. the news media is biased in its coverage.
C. the coal-fired power plant contains none of the radiation it releases.
D. the coal-fired power plant's radiation shields need to be strengthened.
Answer: C
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The actual age of the volcanic rock on Midway is about 27.7 million years. Suggest a reason why your answer for problem 3 differs noticeably from this.
Place a 1-kg block of iron at 40°C into a kilogram of water at 20°C and the final temperature of the two becomes
A) less than 30°C. B) at or about 30°C. C) more than 30°C.
Volcanic mountains such as the Andes and the Cascade formed inland as a result of
A) intense earthquakes in subduction zones. B) rising plumes of magma associated with subduction of the Pacific Plate. C) upwelling along mid-oceanic ridges. D) divergent plate boundaries. along continental edges E) transform plate boundaries on the west coasts of North and South American
You are dispatched to a residence for an "ill person." Upon arrival, you enter the residence and find the patient, a 72-year-old woman, lying on the couch; she is responsive to pain only. Her son, who arrived shortly before you, tells you that her air conditioner went out, and that he came over to her house to pick her up and found her in her present condition. He further tells you that his mother has diabetes, hypertension, and congestive heart failure. Assessment of the patient reveals that her skin is flushed, hot, and dry; her pulse is rapid and weak; and her blood pressure is low. After moving the patient to the ambulance and applying high-flow oxygen, you should next:
A) remove any bulky clothing, assess her temperature, begin active cooling if her temperature is greater than 105°F, and start a large-bore IV with normal saline. B) intubate her to protect her airway, apply chemical ice packs to her trunk area only, start an IV and give a normal saline bolus, and assess her axillary temperature. C) cover her with sheets that are soaked with water, start a large-bore IV and give a 20-mL/kg fluid bolus, and administer 50% dextrose for presumed hypoglycemia. D) strip her to her underclothing, begin rapid cooling measures, assess her rectal temperature if possible, establish vascular access, and assess her blood glucose level.