What is meant by the "lag-time" on a stream hydrograph?
A. Time between floods
B. Time between flood peak and the next rain event
C. Time between rain event and flood peak
D. Time between rain events
Answer: C
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Waste materials left from processing mineral deposits are called
A. tailings. B. placers. C. spoil piles. D. nodules.
The Germans established the ________ known as the Caprivi Strip in present-day Namibia to access resources in central Africa, including the Zambezi River
A) causeway B) disruption zone C) railroad D) protraction E) proruption
The 1:1 clay mineral structure is characteristic of:
a. kaolinite b. chlorite c. montmorillonite d. both a and b
The dominant wavelength of energy emitted by the Sun is
A) shorter than that emitted by Earth. B) longer than that emitted by Earth. C) the same length as that emitted by Earth.