At a concert, a wind blows directly from the orchestra toward you. Consequently, the wavelength of the sound you hear will be
A) decreased.
B) increased.
C) neither decreased nor increased.
B
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What is the relationship between seafloor spreading and reversals in the Earth's magnetic field?
What will be an ideal response?
Mudflows are ________ likely to occur in areas not protected by vegetation.
A. just as B. less C. more D. Mudflow occurrence is not related to average rainfall or vegetative cover.
Approximately 5 minutes following ascent from the water, a 30-year-old male diver complains of sharp chest pain and mild dyspnea. By the time you arrive at the scene, the patient is unresponsive. You should be MOST suspicious for:
A) nitrogen narcosis. B) a tension pneumothorax. C) decompression sickness. D) an arterial gas embolism.
The original source of energy contained in fossil fuels is
A. solar energy. B. seismic energy. C. geothermal energy. D. nuclear energy.