Waves at the shore will start to break when the ____
A) water depth is about twice the wavelength
B) crest flattens into a rounded form
C) wave period increases to 15 seconds
D) wave height to water depth ratio is 3:4
D
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The sinking air in an anticyclone
A) causes instability. B) leads to widespread precipitation. C) increases in relative humidity as it sinks. D) warms adiabatically. E) all of the above
The single most important control on temperature is
A) insolation. B) altitude. C) latitude. D) distribution of land and water.
Water molecules can attach their positive sides against clay minerals because clay surfaces are also positively charged.
Answer the following statement true (T) or false (F)
In polar areas
A. as ice forms, water's salinity increases, density increases. B. as ice melts, water's salinity increases, density increases. C. as ice melts, water's salinity increases, density decreases. D. as ice forms, water's salinity decreases, density increases.