Why is drainage control sometimes an effective method of landslide control?
A) it reduces the amount of water in the hillslope materials
B) it reduces the growth of vegetation
C) it reduces the thickness of the slide mass
D) it reduces the permeability of the rocks
A
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The present-day tilt of Earth's axis of rotation is 23.5° degrees. What would be a result of more tilt, as shown here?
A) High latitudes would receive fewer hours of sunlight in winter
B) A decrease in glacial activity
C) An increase in the summer to winter temperature differences
D) All of these are correct.
In the Northern Hemisphere, north facing slopes are generally colder, have slower snowmelt, lower evapotranspiration rates, and more moisture for plants than south facing slopes do
Indicate whether the statement is true or false
The nighttime counterpart of the sea breeze circulation is called
a. ?Chinook. b. ?Santa Ana. c. ?land breeze. d. ?a night breeze. e. ?foehn.
Worldwide, soil has an average depth of ________ centimeters (________ inches)
A) 1, (0.39) B) 15, (6) C) 45, (18) D) 90, (36) E) 150, (60)