The net force acting on air that is blowing parallel to straight contours at constant speed is ____
A) in the direction of wind motion
B) to the right of the wind's motion in the Northern Hemisphere
C) zero
D) in a direction opposite the wind's motion
C
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The Doppler effect is mainly concerned with changes in
A. pitch. B. wave amplitudes. C. wave periods. D. wave speed.
The subdivision of the geologic time scale that represents the longest time span is called a(n) _________
a. epoch b. era c. period d. stage
Which of the following best matches the description?Biome that lacks trees and has permanently frozen soil.
A. marsh B. biochemical oxygen demand C. benthic D. boreal forest E. phytoplankton F. periphyton G. grassland H. pioneer community I. pelagic J. desert K. euphotic L. littoral zone M. savanna N. deciduous forest O. tundra
A 42-year-old male road worker has been shoveling gravel all day in the hot sun. He was witnessed to pass out and now remains on the ground with severe altered mental status. His skin is hot and moist. You should:
A. provide small sips of water. B. apply moist towels over cramped muscles. C. apply cold packs. D. cover him with a dry sheet.