What is the relative humidity for the above conditions at 25°C?
a. 30%
b. 100%
c. 15%
d. 70%
Answer: d. 70%
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Double the frequency of sound and you also double its
A) wavelength. B) speed. C) amplitude. D) all of the above E) none of the above
Which well is least likely to need pumping?
A) a well that reaches water very near the surface at an unconfined sand and gravel aquifer B) a well that is drilled below a confining shale layer to a confined sandstone aquifer C) a well that is drilled deep in an unconfined sandstone aquifer D) any well in a limestone aquifer
The combination of diurnal and semidiurnal tides produces a(n) ________ tide.
A. diurnal B. semidiurnal C. equilibrium D. mixed semidiurnal E. standing
Sclerophyllous vegetation is common in which climate region?
a. Tropical rainforest b. Humid subtropical c. Mediterranean d. Marine west coast