Sound waves cannot travel in
A. a vacuum.
B. steel.
C. air.
D. water.
Answer: A
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A mineral has the physical property of strong luster. What can be inferred about the elemental makeup?
A) The mineral could be made up of nonmetals. B) The mineral could be made up of condensed liquids. C) The mineral could be made up of metals. D) The mineral could be made up of condensed gases.
What type of current occurs during a high tide?
a. Ebb current b. Flood current c. Slack water d. Tidal influx
The Basel Convention, Aarhus Convention, the exposure of the Navajo Nation to radioactive elements in mining operations, and the plight of residents of Emelle, Alabama, are aspects of
A) funding for the cleanup of toxic spills and contamination. B) ecosystem protection. C) environmental justice. D) recycling of hazardous wastes.
Which of the following conditions is best suited to create an advection fog?
A. vertically descending dry, cold air moving over a warm surface B. laterally moving dry, cold air moving over a warm surface C. vertically rising moist, warm air moving over a cold surface D. laterally moving moist, warm air moving over a cold surface